991 lines
48 KiB
Plaintext
991 lines
48 KiB
Plaintext
JULY 1990, NASA TECH BRIEFS, VOL 14, NO 7
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FRANCE: A LEADER IN SPACE
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France has been active in space R&D since the early 1960s. In 1965,
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France placed a satellite in orbit using its own resources. Today,
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France is the number three spacefaring nation, after the United States
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and the Soviet Union. French efforts are balanced between a strong
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national program under the leadership of the Centre National d'Etudes
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Spatiales (French Space Agency) and a leading role in the projects of
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the European Space Agency.
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A characteristic success of the national program is the series of SPOT
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remote sensing satellites: SPOT 1 has been in operation since 1986; SPOT
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2 was placed in orbit early in 1990; SPOT 3 is under construction; and
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SPOT 4, decided upon in 1989, will ensure continuity of data until the
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end of the century. Pictures from SPOT, with 10-meter resolution, are
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marketed by the SPOT Image Company and its U.S. subsidiary, SICorp.
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France promoted the European launch vehicle Ariane and made a major
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contribution to the funding of the European Space Agency program.
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Arianespace, the company set up to market the launcher, has gained more
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than half the world market open to commercial competition.
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The French space industry is the European leader, its capabilities and
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experience range from the production of sensors and complex systems to
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exercising full responsibility as main contractor for complete satellite
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and ground equipment systems.
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I am sure that beyond current scientific collaboration, illustrated by
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the Topex-Poseidon project, the tradition of scientific and commercial
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cooperation between France and the United States will go from strength
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to strength.
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-- Paul Quiles
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Minister for Posts, Telecommunications and Space
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FRANCE'S HIGH TECHNOLOGY IN SPACE
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France is the leading space power in Europe. Its space effort began in
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March 1962 with the creation of a national space agency, the Centre
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National d'Etudes Spatiales (CNES). France was a founding member of
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European space organizations such as the ESRO and the ELDO, which were
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replaced in 1973 by a single cooperative body, the European Space Agency
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(ESA).
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The French are politically, financially, and technically influential at
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ESA. In addition to being the largest contributor, providing more than
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a third of the ESA's funds, France has provided valuable proposals,
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including the ESA's first launch vehicle, Ariane, and now the Ariane-5
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heavy-lift launcher and the Hermes manned spaceplane.
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Together with the Columbus space station initiated and principally
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sponsored by Germany and Italy, Hermes and Ariane-5 are the largest and
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most expensive programs underway in Europe. The development of this
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unprecedented space triad represents a $20 billion investment by the
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1
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ESA's 13 member states.
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Ariane-5 is to replace past Ariane rockets for commercial launches of
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geostationary and polar satellites. It is also designed to loft into
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low-Earth orbit the Hermes spaceplane, which will service the European
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orbital infrastructure, including Columbus. Hermes also will have the
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capability to visit foreign space stations, including the American
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Freedom station and the Soviet Mir facility. The hypersonic glider will
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carry three crew members and three tons of payload into space station
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orbits at approximately 450 km. Its initial autonomy of seven days
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could later be expanded to one month.
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Hermes and Columbus, while appearing modest compared to U.S. and Soviet
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capabilities in similar domains, will be extremely important to Europe
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because they will give it autonomous access to manned space flights.
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This ambitious goal is within European capabilities, both technically
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and financially. European aerospace firms, especially those presented
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in this survey, have the high-tech capabilities needed to meet the
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challenges of manned space flight.
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FROM SATELLITE AND ROCKETS TO THE GOAL OF MANNED SPACEFLIGHT:
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AN OVERVIEW OF FRENCH INDUSTRY'S ACHIEVEMENTS AND CHALLENGES
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This year, France will celebrate the 25th anniversary of its first
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satellite launch. On November 26, 1965, the 41 kg Asterix satellite was
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launched from Hammaguir in the Sahara Desert and put into orbit to test
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the performance of its pioneering rocket, Diamant.
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Sence then, France has continually increased its space effort. In 1990,
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CNES will spend nearly $2 billion for space activities, with the lion's
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share (40 percent) going to ESA. The French aerospace industry
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presently employs more than 10,000 people, mainly skilled engineers and
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technicians. Major French aerospace companies include: Aerospatiale,
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Matra, Alcatel, Dassault, SEP, SNPE, Arianespace, CLS Argos, SPOT Image,
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and Novespace. The latter four are among the 15 commercial subsidiaries
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CNES has founded over the last 20 years.
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REORGANIZING THE SPACE INDUSTRY
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Three leading French aerospace companies are prime contractors for
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satellite systems in the fields of communications, observatino, and
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sci8ence. The government-owned Aerospatiale and the privately-led Matra
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are manufacturing scientific, communications, direct broadcasting, and
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remote sensing satellites as part of national and international
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programs. Both have expertise in developing subsystems such as
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structures, thermal and attitude controls, data processing equipment,
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on-board computers, and software. They also develop instruments and
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systems for biomedical and materials processing experiments in the
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microgravity environment of space.
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Alcatel Espace, the only major French company fully dedicated to space
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activities, is a leading manufacturer of satellite payloads and space
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borne equipment for communications and military surveillance systems.
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The French Ministry of Defense selected Alcatel as prime contractor for
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the Syracuse military communications satellite system. The contract for
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Syracuse 2 is worth $700 million.
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2
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Aerospatiale and Alcatel are working on an agreement to merge their
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respective satellite activities into a single unit. The joint venture
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should be established by the end of 1990. Matra Space recently teamed
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with Marconi Space Systems to create Matra Marconi Space (MMS). Matra
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is majority owner and will retain its previous deal with British
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Aerospace to jointly develop Eurostar satellite platforms.
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Matra has established alliances with several other European companies,
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including Crisa (Spain), Spacebel (Belgium), and Intecs (Italy). These
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joint ventures are part of an effort by aerospace companies to diversify
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and build market share in order to cope with the unified European market
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of 1993.
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MATRA EXTENDS ITS BASE
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Last year, Matra extended its strong European base by gaining control of
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Fairchild Industries in the United States. The French company bought
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three divisions of Fairchild -- Space, Communication and Electronics,
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and Control systems -- with a combined staff of 2100 and total sales of
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$250 million in 1989. The new entity, named the Fairchild Space and
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Defense Corp. (FSDC), "will remain an autonomous American company"
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according to Claude Goumy, MMS chairman.
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With its European subsidiaries and American acquisition, MMS now
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represents a space group with 4000 workers, sales approaching $830
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million, and order totaling approximately $1.5 billion. The unit's
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operating profit is between six and seven percent, according to Goumy.
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MMS is now ranked third among the world's satellite manufacturers,
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behind two American giants, Hughes Aircraft and GE Astro Space. Goumy
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expects MMS to grow 15 percent annually. "The group will employ 5000
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workers and achieve $1 billion in sales by 1992," he predicted.
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Matra is involved in five areas of space business: communications,
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observation satellites, scientific satellites and instruments, space
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borne avionics, and launcher equipment bays for Ariane. The company is
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prime contractor for numerous civil and military satellites, including
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Telecom 2, Hispasat, Locstar, SPOT, Helios, ERS, Hipparcos, and Soho.
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The Solar and Heliospheric Observatory (Soho), part of the international
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Solar-Terrestrial Physics Program, will be launched by an American
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rocket in 1995.
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Matra has developed space-borne instruments for Earth Observation
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satellites, including CCD cameras for SPOT and imaging radiometers and
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infrared sensors for Meteosat satellites. One Meteosat radiometer set a
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world record by sending more than 400,000 images during its seven-year
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lifetime.
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VSATs (very-small-aperture terminals) also attracted MAtra. Through
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Polycom, a cooperative venture with France Telecom, the company has sold
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more than 1000 VSATs in 70 countries. These one-way terminals are
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jointly developed by Matra, Fuba of Germany, and Harris Corp., of the
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U.S. Matra is now addressing the two-way VSAT market and also wants to
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enter the direct broadcasting business.
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One way Matra hopes to increase its space business is by expanding into
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the area of satellite services. The French group is a shareholder in
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service companies such as Arianespace and SPOT Image, and intends to
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gain a foothold in the mobile communications business by participating
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3
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in new ventures such as Locstar, the French radio-determination
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satellite system (RDSS) initiated by CNES.
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Locstar will be developed and operated by the privately owned company
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Locstar SA, another commercial subsidiary of CNES. The L-band RDSS will
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be a two-way system designed for mobile use on land, at sea, or in the
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air. It will use two MMS-built geostationary satellites scheduled for
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launch by Ariane in 1992. Locstar will compete with other RDSS systems
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sponsored by international organizations such as Eutelsat and Inmarsat.
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Eutelsat is presently promoting its Euteltracs system, a European
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version of the U.S. Omnitracs system. Alcatel Espace recently signed a
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contract with Qualcomm Inc. to promote and sell Euteltracs mobile
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receivers in Europe.
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ALCATEL ESPACE'S ELECTRONICS IN SPACE
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The Alcatel group was restructured earlier this year and two new units
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were formed: a radio, defense, and space company chaired by Jacques
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Imbert, and a space division headed by Jean-Claude Husson, who also
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serves as president of Alcatel Espace.
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The French firm is a leading producer of communications satellite
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payloads and space-borne electronic equipment, including power
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amplifiers, repeaters, receivers, transmitters, multiplexers, filters,
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and antennas. It develops satellite antennas for the 2 to 90 GHz range
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and also produces ground stations. Telspace, an Alcatel subsidiary, has
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sold more than 2000 Earth stations worldwide and is now moving into the
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VSAT market.
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Alcatel Espace has equipped more than 40 national and international
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satellites. The company developed payloads and equipment for several
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communications and direct broadcasting satellites, including TDF, TV
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SAT, Tele-X, Telecom 2, and Eutelsat 2. It provided telemetry, command,
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and ranging equipment for scientific satellites such as Giotto and
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Ulysses, and produced much of the on-board electronics for SPOT, Helios,
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and other Earth observation satellites.
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Alcatel is a member of the international team For Aerospace selected to
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build five new Intelsat 7 communications satellites. Moreover, it
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received a contract from GE Astro Space to build a transmitter-receiver
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for NASA's Mars Observer craft, scheduled for launch in 1992. The
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equipment will relay data collected on Mars' surface by French balloons
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deployed by the Soviet spacecraft Mars 94.
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The first European experiment in inter-satellite link is being developed
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at Alcatel Espace under a CNES contract. The Ka-band orbital link will
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be tested between two European satellites: Olympus 1, already in
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geostationary orbit, and the retrievable carrier Eureca, planned for
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launch aboard the space shuttle in September 1991.
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Under contract to ESA, Alcatel has participated in design studies of
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Data Relay Satellites slated launch in 1996. The European DRS will
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transmit data in the Ka-band at 400 MBits/s.
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In summary, Alcatel Espace's know-how covers the technologies of
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communications satellite systems from 400 MHz to 30 GHz. In cooperation
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with the Canadian companies Spar and Comdev, the French firm is working
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on military equipment using even higher frequencies -- 40-60 GHz (ELF).
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4
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Alcatel's expertise extends to microwave instruments and data processing
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techniques for space-borne synthetic aperture radars (SARs). The
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company is in charge of the radio frequency calibration subsystem for
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the Active Microwave Instrument of ERS-1, the first European radar
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satellite. The radar processing equipment employs surface acoustic wave
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devices and other innovative technologies developed by AME Space,
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Alcatel's Norwegian affiliate.
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Alcatel Espace is studying designed of C- and S-band imaging radars for
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future civilian satellites, including the European Polar Platform. CNES
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awarded Alcatel a contract to build a prototype SAR called Radar 2000
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which will feature a resolution of 4 to 20 m with a field of view
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ranging from 20 to 40 km. The rapid-scanning, phased-array antenna will
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be fitted with several hundred transmitting-receiving modules using
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monolithic circuits. Alcatel researchers are also studying a high
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resolution space-borne radar for military applications such as the
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detection of surface ships.
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CNES awarded Alcatel Espace $20 million to develop the first French
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space-borne radar-altimeter, dubbed Poseidon, which will fly with an
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American SAR on the Topex oceanography satellite to be launched by
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Ariane in June 1992. From its orbit 1300 km above the Earth, Poseidon
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will measure ocean altitude with an accuracy of 3 to 4 cm. A prototype
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of Poseidon is now being tested at CNES. "Its performance seems at
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least as good as that of the American radar-altimeter," said Mr. Husson.
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AEROSPATIALE: FROM THE FORCE DE FRAPP TO SATELLITES AND ROCKETS
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Aerospatiale-Strategic and Space Systems Division is tasked with
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developing satellites and rockets as well as ballistic missiles for the
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French "Force de Frappe." This year, for the first time, "space is
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exceeding military business," according to Michel Delaye, the new
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division head. It represents about 52 percent of the division's total
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turnover, estimated at $1.3 billion.
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Over the past 25 years, Aerospatiale has contributed to the development
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of 60 satellites and today is prime contractor for approximately 40
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percent of all civilian satellites developed in Europe. Its space group
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severed as prime contractor for several recent communications and
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meteorological satellites, including Meteosat, Arabsat, TDF 1 and 2,
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Tele-X, and Eutelsat 2. On May 28, Aerospatiale delivered the Eutelsat
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2/F1, the first of five new communications satellites ordered by
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Eutelsat. The satellite is planned for launch this year by Ariane, as
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are the MOP 2 and TDF 2. TDF 1 and 2 are France's first direct
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broadcasting satellites; they can relay up to five television programs
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through powerful beams over France and most of Europe.
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Another recent achievement by Aerospatiale's space division is the
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Infrared Space Observatory (ISO), built for ESA. This sophisticated
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astronomy satellite is equipped with a 60-cm aperture telescope
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installed inside a large cryostat cooled by liquid helium. The 2.4-ton
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observatory is slated for launch by an Ariane 4 in 1993.
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Aerospatiale is developing several other French and European satellites,
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including SPOT, Helios, and ERS-1. For the Helios military
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reconnaissance satellite, it is providing the structure, solar panels,
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and thermal control system, as well as the main instrument -- an
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5
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optoelectronic camera that will take high-resolution visible and
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infrared pictures. The first Helios satellite, weighing about 2 metric
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tons, is planned for launch into heliosynchronous orbit by Ariane in
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mid-1993.
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Aerospatiale is the European leader in space transportation systems,
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including Ariane rockets and the Hermes spaceplane. It manufactures
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propellant tanks for the liquid-fueled Ariane rockets. The company
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integrates the first and third stages of the launchers at a facility in
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Les Mureaux, near Paris. New facilities were built to integrate the
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Ariane 5's cryogenic first stage, which is 5.4 m in diameter and 30 m
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tall. When fully assembled, it will be ferried by a barge to Le Havre,
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where it will be shipped to Kourou.
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Aerospatiale's space and aircraft division are working in tandem to
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develop the Hermes spaceplane. "It's a challenging program that
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requires major breakthroughs in several advanced space technologies,"
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said Delaye. "But it will pave the way for the development of piloted
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space systems and hypersonic reentry vehicles by European industry, who
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will then be better prepared to address the design of future shuttles."
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The company is also studying servicing vehicles for the European in
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orbit infrastructure. This includes a transfer orbital stage and a crew
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rescue capsule. Supported by its experience with ballistic reentry
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bodies and Hermes, Aerospatiale has signed an agreement to assist the
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Lockheed Missiles and Space Company in responding to NASA's request for
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the Assured Crew Return Vehicle (ACRV).
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Delaye's team is conducting preliminary concept and design studies of a
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follow-on to Ariane-5. This is part of the company's internal work on
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future reusable space vehicles. According to Delaye, Aerospatiale
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favors a two-stage, rocket-type vehicle that would lift off vertically
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and land horizontally on a runway.
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Aerospatiale's space aircraft and tactical divisions are participating
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in an assessment study of hypersonic vehicles sponsored by the French
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Ministry for Research and Technology. The aircraft division developed
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the Concorde and is now cooperating with British Aerospace on
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preliminary studies of a next-generation supersonic transport, while the
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tactical division developed the world's only operational ramjet missile:
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the ASMP medium-range nuclear missile.
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DASSAULT GOES TO SPACE WITH HERMES
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Dassault, the well known combat aircraft manufacturer, became a major
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player in the space industry five years ago when it was named delegated
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prime contractor for the Hermes spaceplane. Dassault's space activities
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began in 1962 with the development of the MD 620 ballistic missile and
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concept studies of a hypersonic vehicle called TAS. In 1972, under
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contract to Boeing and Grumman, the company designed, developed, and
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tested a candidate thermal protection system for the space shuttle.
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The Hermes project marks Dassault's reentry into the space business
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after more than a decade of absence. The company is responsible for
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Hermes' aerodynamic design, reentry trajectories and related systems,
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atmospheric light control systems, and subsonic flight tests. These
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tasks are extremely challenging because of Hermes' small size and mass,
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explained Jean Roubertie, Dassault's director of space programs. The
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6
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spaceplane will weigh between 21-23 metric tons and be designed for an
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extended flight envelope ranging from 160 to 16,000 knots and
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atmospheric reentry from Mach 29. External temperatures will vary from
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-101 to +1816 degrees C.
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Hermes' aluminum structure will require thermal protection systems that
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can support the effect of oxidation during 30 successive reentries.
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"Hot" fuselage parts such as the nose, winglets, leading edges, and
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control surfaces will be made of carbon and ceramic composite integral
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structures developed by Aerospatial and SEP. "Cold" surfaces will be
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covered by ceramic tiles or lightweight multilayered insulation
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comprised of glass or quartz fibers.
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Flight control of the hypersonic glider will be achieved through
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configuration controlled vehicle (CCV) techniques developed for the
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Rafale. For atmospheric test flights at subsonic speeds, Hermes will be
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dropped from an aircraft carrier such as Airbus. Dassault has also
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proposed using a modified Falcon jet for testing and qualifying approach
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and landing procedures one year before the first orbital flight, now
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planned for 1998.
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Dassault is also involved in technology development for astronaut extra-
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and intra-vehicular activity (EVA/IVA). More than 30 European firms are
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developing EVA/IVA suits and life support systems under contract to
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Dassault and Dornier of Germany. The IVA system includes ejection seats
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for Hermes' three crew members. Dassault is considering using ejector
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seats similar to those developed for the Soviet shuttle Buran. They
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would enable safe ejection at speeds up to Mach 3.
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In addition to Hermes, Dassault is investigating reusable hypersonic
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space transportation systems as part of the Star-H study funded by CNES.
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Star-H us derived from Dassault's TAS research. The new design employs
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a large hypersonic plane to launch a small spaceplane propelled by a
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jettisonable booster. This element is the only nonrecoverable part of
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the 400-ton vehicle, scaled to carry a Hermes-type spaceplane in low
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Earth orbit with a payload of approximately 3 tons. The Star-H program
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aims to build a realistic data base on aerothermodynamics, airframe
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engine integration, stage separation, structures, and materials.
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Further, it looks to define aerodynamic codes, structural loads, and
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other parametric laws which could be used in designing manned hypersonic
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vehicles for space or transatmospheric missions.
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Dassault is also conducting studies of planetary reentry systems in
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cooperation with Marconi of the United Kingdom, Dornier, and SEP. The
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studies involve various types of aeroshells designed to protect entry
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probes dropped on outer planets or bodies such as comets.
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Now in the beginning stages, space activities will account for a modest
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three percent of Dassault's turnover in 1990. The company hopes to
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raise that figure to ten percent.
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SEP, THE MOTOR SPECIALIST
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SEP (Societe Europeenne de Propulsion) is the only company in Europe
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and one of the few in the world with the capability to produce both
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liquid and solid rocket engines of various sizes for civil and military
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applications. Its production ranges from small tactical missiles to
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large stages of ballistic missiles and space boosters, and includes
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|
||
7
|
||
|
||
|
||
|
||
|
||
|
||
conventional and cryogenic liquid engines for space vehicles. The
|
||
company has 4000 workers and an annual turnover of approximately $800
|
||
million, according to SEP chairman Jean Sollier, who compares the firm's
|
||
size to that of Thiokol in the U.S.
|
||
|
||
SEP's main business is liquid rocket engines for the Ariane family of
|
||
launchers. The company will produce several hundred Viking and HM7
|
||
engines for Ariane 4 rockets. Each Ariane 4 uses nine Vikings on the
|
||
first and second stages and one HM7 on the third stage. The Viking is a
|
||
storable liquid propellant engine which delivers an average thrust
|
||
exceeding 700 kN. The HM7 is the first operational cryogenic engine in
|
||
Europe. The turbopump-fed engine burns a mixture of liquid oxygen and
|
||
hydrogen with a rated thrust of more than 60 kN and a chamber pressure
|
||
of 31-36 bars.
|
||
|
||
SEP is prime contractor for the Vulcain cryogenic engine that will
|
||
propel the Ariane 5's first stage. An open-cycle turbopump engine, the
|
||
Vulcain works under a chamber pressure of 100 bars to deliver
|
||
approximately 110 tons of thrust. It burns about 24 tons of hydrogen
|
||
and 128 tons of oxygen in 560 s with a specific impulse of 430 s. SEP
|
||
received a contract worth more than $260 million to develop the Vulcain.
|
||
The first engine, delivered in April, will be fired this summer at the
|
||
SEP test bed in Vernon, near Paris.
|
||
|
||
SEP has teamed with the Italian firm BPD to develop and manufacture the
|
||
Ariane 5's huge solid boosters. The joint venture, called
|
||
Europropulsion, received a $670 million contract. Ariane 5 will use two
|
||
solid boosters to lift the rocket during the first two minutes of
|
||
flight. Each booster weighs about 260 tons, including 230 tons of
|
||
composite propellant, and has a nominal thrust of 600 tons. The
|
||
boosters are 26 m long, 3.1 m in diameter, and have three segments,
|
||
including two weighing more than 100 tons. They are produced on the
|
||
launch site in Guiana.
|
||
|
||
The French firm is now developing advanced rocket engines for future
|
||
applications on launch vehicles. Last year, it successfully tested an
|
||
HM7 cryogenic engine equipped with a ceramic nozzle made of a carbon
|
||
silicon carbide material called Sepcarbinox. The engine was test-fired
|
||
for 750 s and 900 s and sustained operating temperature up to 1800
|
||
degrees C. The ceramic nozzle is 1 m in length and diameter and weighs
|
||
only 25 kg. SEP research shows that a cryogenic engine fitted with this
|
||
type of non-deployable nozzle can increase payload mass by 65 kg on
|
||
Ariane 4 and 1650 kg on Ariane 5.
|
||
|
||
SEP is also conducting research on low-thrust liquid engines under
|
||
contract to DGE. It has tested the major components of a 20 N engine
|
||
designed for attitude control of satellites and the Hermes spacecraft.
|
||
During preliminary ground tests, the injector and thrust chamber have
|
||
been fired for one hour at 1600 degrees C. Previously, the company
|
||
developed MMH-N2O4 engines for attitude control of TDF and TV-SAT direct
|
||
broadcasting satellites. It also built the Mage Apogee motor for
|
||
satellite transfer into geostationary orbit.
|
||
|
||
SEP has established technological and commercial links with some
|
||
prominent U.S. aerospace firms. Five years ago it signed a long-term
|
||
agreement with Rocketdyne to work on liquid propulsion concepts for
|
||
future launchers. It has sold licenses for its advanced composite
|
||
materials to three American companies: Corning Glass, for development of
|
||
|
||
|
||
8
|
||
|
||
|
||
|
||
|
||
|
||
a carbon-carbon product for human prosthesis; Dupont de Nemours, for a
|
||
ceramic material used in a classified defense program; and B.F.
|
||
Goodrich, for carbon-carbon disks applied to aircraft brakes.
|
||
|
||
Earlier this year, SEP was chosen to provide the composite rocket engine
|
||
nozzle for the ERINT experimental missile developed by LTV. Flight
|
||
tests will begin in 1991.
|
||
|
||
"The U.S. is a high-priority market for SEP," said Mr. Sollier, who
|
||
hopes to participate in propulsion research for the National Aerospace
|
||
Plane and other U.S. aerospace projects. SEP and Snecma recently set up
|
||
a joint venture called Hyperspace to work on hypersonic propulsion for
|
||
future atmospheric vehicles.
|
||
|
||
SNPE: MAKING MAGIC POWDER FOR ROCKETS
|
||
|
||
SNPE (Societe Nationale des Poudres at Explosifs) is developing and
|
||
producing solid propellants for civil and defense applications such as
|
||
tactical and ballistic missiles and space rocket motors. Last year, the
|
||
company established a defense and space division headed by Pierre Dumas.
|
||
The division is responsible for half of SNPE's turnover, which amounted
|
||
to $650 mission in 1989. Five years ago, the group established a sales
|
||
branch in the United States, SNPE Inc., located in New Jersey, is
|
||
developing the company's full range of chemical products.
|
||
|
||
SNPE's main customer for space products is CNES. The company started
|
||
with UDMH (unsymmetrical dymethylhydrazine), which has been produced by
|
||
its chemical division in Toulouse since 1983. Initially, the liquid
|
||
propellant for Ariane rockets was purchased from China and the Soviet
|
||
Union. Now, however, Ariane's liquid fuel is produced in France and is
|
||
purer than the imported versions.
|
||
|
||
The company is working with BPD of Italy to produce solid propellant for
|
||
Ariane 5 boosters. They are using Butalane, a composite propellant made
|
||
of aluminum and ammonium perchlorate. It delivers a specific impulse of
|
||
244 s (French standard), which is similar to the performance of the
|
||
space shuttle's boosters. SNPE recently expanded its ammonium
|
||
perchlorate manufacturing facility in Toulouse to increase its annual
|
||
production form 800 tons to 6000 tons, which is half the production
|
||
capacity of existing U.S. facilities. The Toulouse plant will be
|
||
activated in July, according to Claude Grosmire, SNPE's director of
|
||
space propulsion.
|
||
|
||
SNPE and BPD have formed a new company called Eupera (European
|
||
Perchlorate Ammonium) to coproduce the chemical agent in Toulouse. The
|
||
companies previously established a joint venture called Regulus to build
|
||
and operate a manufacturing plant in Kourou for the two largest segments
|
||
of the Ariane 5 boosters. The "Usine de Propergol de Guyane" (Guiana
|
||
propellant plant) will be inaugurated later this year. The highly
|
||
automated plant will have only 150 workers.
|
||
|
||
Based on a launch rate of eight rockets per year, production for Ariane
|
||
5 will amount to 3800 tons by 1998 and is expected to continue until the
|
||
year 2015. According to Mr. Dumas, this represents an annual turnover
|
||
of more than $60 million for Regulus.
|
||
|
||
SNPE is also investigating new chemical molecules for advanced
|
||
propellants. One of the most promising is a polyazido-glycidyl known as
|
||
|
||
|
||
9
|
||
|
||
|
||
|
||
|
||
|
||
PAG. An energetic binder is used instead of conventional polybutadiene
|
||
to achieve better performance in terms of specific impulse. PAG will
|
||
enable the development of nonpolluting propellants (without ammonium
|
||
perchlorate) for booster applications.
|
||
|
||
ARIANESPACE MARKETS LAUNCHERS WORLDWIDE
|
||
|
||
Arianespace is celebrating its tenth anniversary in 1990. The company
|
||
was founded in March 1980 by 36 leading European manufacturers in the
|
||
aerospace and electronics sectors together with 13 major European banks
|
||
and CNES. It was the first private company set up to fund, manufacture,
|
||
market, and launch large commercial rockets. In 1982, a fully owned
|
||
subsidiary, Arianespace Inc., was established in Washington, D.C. to
|
||
deal with American customers.
|
||
|
||
Arianespace has captured more than half of the world market for
|
||
commercial launches. In addition to nine initial contracts signed by
|
||
ESA, Arianespace has logged 83 launch contracts with nearly 30 customers
|
||
worldwide. Six American companies -- GE, GTE, Spacenet, Alpha-Lyracon,
|
||
Hughes Communications, GE Astro Space Division, and the Satellite
|
||
Transponder Leasing Company -- as well as two international
|
||
organizations -- Intelsat and Inmarsat -- have entrusted their precious
|
||
communications satellites to the European rocket. Global sales over the
|
||
past decade exceed $4.7 billion for the 83 satellites booked by
|
||
Arianespace, of which 54 have been launched. With the signing of nine
|
||
new contracts since the beginning of the year, the company now has
|
||
orders for 38 satellite launches, representing $2.8 billion in sales.
|
||
Last year, the company's total sales were $640 million.
|
||
|
||
This success is due in part to the pragmatic approach taken by Ariane's
|
||
promoters, who decided in the early 1970s that the best rocket for
|
||
commercial operations would be one of conventional design, optimized not
|
||
to achieve the highest expected performance but rather the lowest
|
||
possible cost.
|
||
|
||
The Ariane 1 made its maiden flight in 1979. Since then, Arianespace
|
||
has successfully flown improved versions including the new Ariane 4,
|
||
which will be the company's workhorse for the remainder of the decade.
|
||
The most powerful of the series, Ariane 4 enables single or dual
|
||
launches of payloads totaling up to 4.4 tons in geostationary transfer
|
||
orbit.
|
||
|
||
Among the 36 Ariane rockets flown during the past decade are eight
|
||
Ariane 4s. The eighth one failed during the last Ariane launch in
|
||
February (flight V36). Tighter quality controls have been introduced at
|
||
industrial levels to prevent the recurrence of such a problem. Launches
|
||
will resume in late July or August, according to Frederic d'Allest,
|
||
Arianespace chairman. To make up for the lost time, nine flights
|
||
instead of seven or eight are planned for coming years.
|
||
|
||
Last year, Arianespace awarded contracts to European industry to produce
|
||
50 Ariane 4s -- the largest single order for commercial rockets ever
|
||
issued. While fulfilling this order, the European space industry will
|
||
also be preparing the follow-on rocket, Ariane 5. First flights of the
|
||
more powerful rocket are planned for 1995 and it should be operational
|
||
for commercial satellite launches the following year.
|
||
|
||
Weighing 740 tons at lift-off, Ariane 5 will have a payload-carrying
|
||
|
||
|
||
10
|
||
|
||
|
||
|
||
|
||
|
||
capacity of 5.9 or 6.8 tons for dual or single launches in geostationary
|
||
transfer orbit and a maximum of 23 tons in low-Earth orbit when
|
||
launching the Hermes spaceplane. Arianespace will commercially operate
|
||
Ariane 5 and is also a candidate to operate Hermes following its test
|
||
flights in automatic and manned modes, scheduled for 1998-99.
|
||
|
||
CLS ARGOS OFFERS LOW-COST DATA COLLECTION SYSTEM
|
||
|
||
CLS Argos markets a simple, low-cost data collection system consisting
|
||
of specialized electronic packages developed by French industry which
|
||
are installed on board NOAA weather satellites in polar orbit. The
|
||
system can locate transmitting beacons on the ground or at sea with an
|
||
accuracy of 300 m. Throughout its orbital track, the satellite
|
||
automatically receives the platforms in its field of visibility,
|
||
collects the data, and sends it back to a CLS data processing facility
|
||
in Toulouse, Melbourne, or Washington, D.C. A fourth processing center
|
||
will soon be opened in Tokyo. CLS headquarters in Toulouse is linked by
|
||
computer lines to the overseas centers and to its two subsidiaries in
|
||
the United States: Service Argos Inc., which operates the system for
|
||
North American users, and North American CLS, which develops value-added
|
||
products to complement the service.
|
||
|
||
More than 3000 Argos platforms are now in service worldwide. Initially,
|
||
the system was dedicated to environmental survey applications, but has
|
||
recently been extended to the field of environmental protection. As
|
||
part of a U.S. initiative to control fishing campaigns in the Pacific,
|
||
Argos has been selected to equip more than 700 fishing boats from Japan,
|
||
Korea, and Taiwan. "The most important use of the Argos system is to
|
||
protect ocean resources," said Michel Taillade, president of CLS Argos.
|
||
|
||
Earlier this year, CLS Argos signed an agreement with Eumetsat, the
|
||
European weather satellite organization, to provide a data collection
|
||
service on Meteosat spacecraft. This service, dedicated to
|
||
environmental applications, will begin in October. Next year, CLS will
|
||
provide the same service using the GOES series of geostationary weather
|
||
satellites operated by NOAA.
|
||
|
||
CLS Argos also operates the control center receiving radar-altimetry
|
||
data from Doris, the French orbitography satellite system, which was
|
||
introduced on the SPOT 2 satellite launched earlier this year.
|
||
|
||
"We foresee continued growth in CLS activities at least five more
|
||
years," said Michel Cazenave, CLS Argos chairman. The company achieved
|
||
a turnover of $10.5 million last year and is expected to reach $12
|
||
million in 1990. Areas of potential growth include oceanography,
|
||
meteorology, hydrology, and wild animal tracking. Last year the system
|
||
was used to track albatross. The birds were equipped with tiny
|
||
transmitters and released. The satellite tracking revealed that
|
||
albatross can fly for amazingly long stretches approaching 16,000 km.
|
||
|
||
SPOT IMAGE: COMMERCIALIZING REMOTE SENSING DATA
|
||
|
||
SPOT Image sells remote sensing data collected by the SPOT family of
|
||
observation satellites. Two SPOT satellites are now in orbit, working
|
||
in parallel to obtain visible and near-infrared images of the Earth.
|
||
Each spacecraft is equipped with two CCD cameras to capture
|
||
multispectral and panchromatic pictures at resolutions of 20 and 10
|
||
meters. These high-resolution digital images are easily processed and
|
||
|
||
|
||
11
|
||
|
||
|
||
|
||
|
||
|
||
enhanced.
|
||
|
||
The SPOT 1 satellite, launched in February 1986 with an expected three
|
||
year lifetime, has lasted over four years. This fall, it will be
|
||
replaced by the SPOT 2 satellite launched by Ariane in January. The
|
||
second craft is a carbon copy of the first, as is the next satellite,
|
||
SPOT 3, which should be ready for launch in 1992. SPOT 4, an improved
|
||
version with a four-year design life and an additional midinfrared band,
|
||
is in the early stages of development. It will replace SPOT 3 when that
|
||
satellite can no longer function. "We'll be able to provide an
|
||
uninterrupted flow of data into the next century," said Gerard Brachet,
|
||
chairman of SPOT Image.
|
||
|
||
Last year, SPOT Image achieved sales of $23 million and should reach $26
|
||
million in 1990. Twenty percent of its market is in the United States,
|
||
where it has established a fully owned subsidiary called SICorp.
|
||
According to Brachet, the company's U.S. sales are expected to increase
|
||
by 25 percent in 1990. One reason is the $4.7 million contract the
|
||
Department of Defense recently awarded to SICorp for the delivery of
|
||
several thousand SPOT scenes, mostly 10 m raw data, by late 1991. The
|
||
data will be processed by the Defense Mapping Agency and used in
|
||
preparing the flight missions of USAF Tactical Air Command pilots.
|
||
|
||
Thirty percent of SICorp's customers are government agencies and the
|
||
other 70 percent private users and state organizations such as the
|
||
Florida Department of Planning and the Oregon Department of Water
|
||
Resources. SPOT data is used in such diverse areas as mapping,
|
||
petroleum, and mineral exploration, crop analysis, hydrology, and
|
||
hazardous waste monitoring.
|
||
|
||
SICorp recently introduced a product called Quadmap. It is a
|
||
"spatiocarte," a map developed from satellite data at the scale of
|
||
1/24,000 degrees which is compatible with maps provided by the USGS.
|
||
SICorp has already received an order for several hundred Quadmaps from
|
||
the U.S. National Forest Service.
|
||
|
||
The company's next product will be a "1AP" film for analog data
|
||
processing machines used by photogrammetry services to exploit stereo
|
||
images from SPOT. It also plans to introduce a set of spatiocartes at
|
||
scales of 1/50,000 degrees. With these enhanced products, SPOT Image
|
||
hopes to lure customers from the aerial photography market. "Our major
|
||
competitor is not Landsat but aerial photography," Brachet said.
|
||
|
||
NOVESPACE, A TEAM OF SKILLED CONSULTANTS
|
||
|
||
Novespace is the first private company created to put space technology
|
||
to profitable use in other economic sectors, and to promote the use of
|
||
space microgravity by industry. Established four years ago under the
|
||
impetus of CNES and eight banks, Novespace is directed by Jean-Pierre
|
||
Fouquet, who previously worked in this line with Aerospatiale, after
|
||
spending time as scientific attache for space affairs at the French
|
||
Embassy in Washington, D.C.
|
||
|
||
Novespace has assembled a team of highly skilled consultants that can
|
||
solve problems as diverse as finding French partners for interested
|
||
foreign firms (and vice versa), conducting feasibility or market studies
|
||
in high-tech fields, or performing product opportunity analyses for
|
||
microgravity research. This multifaceted approach has proven highly
|
||
|
||
|
||
12
|
||
|
||
|
||
|
||
|
||
|
||
attractive to clients in Europe and Japan.
|
||
|
||
The company publishes a magazine called "Mutations" that presents
|
||
innovative technologies available for transfer. It is distributed free
|
||
of charge to 20,000 readers, including 15,000 in France and 5000 in the
|
||
rest of Europe, the United States, and Japan. Novespace acts as an
|
||
intermediary, bringing together technology developers and potential
|
||
users and following through on the transfer as they evolve toward their
|
||
final legal, financial, and technical status.
|
||
|
||
In the microgravity arena, Novespace is again taking a multifaceted
|
||
approach, ranging from promotion and consulting to actual system
|
||
operation. To make non-aerospace companies aware of the benefits of
|
||
experiments conducted in weightlessness, Novespace publishes a bimonthly
|
||
newsletter in French, "Mutations Microgravite," which reports on
|
||
worldwide activities in this field.
|
||
|
||
Since raising awareness is only the first step, Novespace also proposes
|
||
case studies and various experimental opportunities, encompassing drop
|
||
towers, experiments on board the space shuttle and Mir space station,
|
||
and parabolic flights.
|
||
|
||
Novespace was named exclusive commercial operator for parabolic flights
|
||
on a Caravelle aircraft converted by CNES for low-G experimentation.
|
||
This facility has been used by French, German, and Japanese clients for
|
||
more than a year.
|
||
|
||
|
||
FRENCH BOOST TO FAIRCHILD SPACE
|
||
|
||
Fairchild Space is the well known manufacturer of Explorer satellites
|
||
and multi-mission modular spacecraft for NASA. One of its top
|
||
achievements is the Topex oceanography satellite, which will be the
|
||
first NASA satellite launched by an Ariane rocket. Fairchild also
|
||
develops deployable masts, louvers, and other electromechanical
|
||
components for satellites.
|
||
|
||
The company is highly skilled in electronics. It has, for example,
|
||
developed a solid-sate mass memory called N-chip which is based on
|
||
three-dimensional VLSI. This "technological jewel" could replace
|
||
magnetic tape recorders on satellites within two to three years,
|
||
according to Mr. Goumy.
|
||
|
||
Fairchild recently was awarded two classified contracts from the
|
||
Department of Defense and has been selected along with another American
|
||
firm for definition studies of the new scientific satellite Gravity
|
||
Probe B. Fairchild is also competing for the Orbital Solar Lab and
|
||
looking for a role in the space station Freedom program.
|
||
|
||
The company is proud to have been chosen for the on-orbit servicing of
|
||
the Hubble Space Telescope. Fairchild first demonstrated its capability
|
||
for repair-in-space when it provided the tools and techniques for
|
||
repairing the Solar Max satellite. To maintain the Space Telescope over
|
||
its 15-year life-time, Fairchild has developed over 100 different tools
|
||
and devices, including a battery-powered screw.
|
||
|
||
"Fairchild's new goals are to participate in the follow-on Landsat
|
||
project and in the next generation of weather satellites. Tiros and
|
||
|
||
|
||
13
|
||
|
||
|
||
|
||
|
||
|
||
DMSP, as well as the Mission To Planet Earth Program," Goumy said.
|
||
Matra's input will be crucial to Fairchild's participation in the Earth
|
||
survey program. The French company has extensive experience in
|
||
developing platforms, sensors, and complete systems for Earth
|
||
observation satellites. It is now constructing a large polar platform
|
||
called SPOT Mk2 for ESA's Columbus program. Equivalent to the U.S.
|
||
platform being developed for the EOS program, Matra's platform should be
|
||
suited for Mission To Planet Earth applications.
|
||
|
||
"The production of small satellites for civil and military applications
|
||
is another area where Fairchild could benefit from Matra's know-how,"
|
||
said Goumy. Such spacecraft, weighing only a few hundred kilograms,
|
||
could be used for scientific experiments, environmental surveys,
|
||
pollution monitoring, communications links, and a variety of other
|
||
applications. MMS and Fairchild Space plan to submit a proposal for a
|
||
worldwide mobile communications system based on a constellation of 24
|
||
small satellites in low-Earth orbit. The project will compete with
|
||
similar ventures such as Orbcomm and Starnet.
|
||
|
||
|
||
SOTEREM: PIONEERING THE MICROGRAVITY BUSINESS
|
||
|
||
Soterem is a good example of a successful small enterprise in aerospace.
|
||
The company was started 15 years ago with only ten people and $20,000
|
||
capital. Last year, it achieved sales of $6.5 million with a staff of
|
||
56.
|
||
|
||
The company serves as a design, engineering, and manufacturing
|
||
subcontractor in the automotive, nuclear, and space industries. In
|
||
addition to space kits, it has developed such innovative products as a
|
||
programmable electronic gearbox used to synchronize electronic motors, a
|
||
2D-vision recognition system, and a water-jet cutting machine that works
|
||
at high pressures to cut composite sheets for printed circuit boards.
|
||
|
||
Space activities account for 40 percent of Soterem's business. The
|
||
company produces satellite integration dollies, solar panel deployment
|
||
mechanisms, specialized battery chargers, and ground support equipment
|
||
for French satellites. It also manufactures pedestal structures and
|
||
servo-positioning mechanisms for ground tracking antennas. Moreover,
|
||
Soterem has extensive experience in developing sample cartridges and
|
||
space furnaces for materials processing in zero gravity. Its major
|
||
achievements in this area include:
|
||
|
||
o CPF (Crystal Pulling Furnace), a three-zone furnace designed to
|
||
achieve pulling speeds of 10^4 to 10^3 cm/sec, up to 1200 degrees C with
|
||
a thermal gradient of 30 degrees C/cm. CNES will use the furnace to
|
||
investigate thermo-solutal convection under microgravity conditions.
|
||
|
||
o AGHF (Advanced Gradient Heating Facility), a Bridgman-type furnace
|
||
for directional solidification of metals and semiconductors in
|
||
weightlessness. The AGHF works at temperatures up to 1400 degrees C
|
||
with a thermal gradient of more than 140 degrees C/cm.
|
||
|
||
o MZF (Multi-Zone Furnace), used for vapor-phase crystal growth
|
||
experiments. The facility has three independent isothermal zones heated
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by sodium fluid circulating in pencil-like heat pipes. Four MZFs will
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be installed in the MFA (Multi-Furnace Assembly) of Eureca, the European
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Retrievable Carrier slated for launch aboard the space shuttle in 1991.
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14
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o Mephisto, a sophisticated facility for studying materials
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solidification in zero gravity. It can achieve a high thermal gradient
|
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up to 500 degrees C/cm and solidification rates from 5.10^-2 to 5.10^-5
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cm/sec. Soterem built the mechanical and thermal elements of the
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furnace, designed by CNES and CEA (the French Atomic Energy Agency) as
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part of a cooperative program with NASA. Mephisto is planned for six
|
||
flights on the space shuttle with the IML 2.
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In 1988, Soterem was selected to develop the Large Primate Facility
|
||
designed to accommodate two Rhesus monkeys for up to 18 days in space.
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The facility is to be delivered within two years to fly on the shuttle
|
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as part of the CNES-NASA cooperative venture.
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||
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The contracts for the primate facility and Mephisto are the largest
|
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Soterem has received to date. Each is worth more than $1.7 million.
|
||
"We now expect to address larger contracts and find other customers
|
||
abroad," said John Williams, Soterem's project manager for space
|
||
activities. Target areas include Asia, the Soviet Union, and the United
|
||
States.
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||
15
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||
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