101 lines
5.2 KiB
Plaintext
101 lines
5.2 KiB
Plaintext
FZFF04
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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X X
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X X
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X FOLO ZONE FUN FILES X
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X X
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X FILE "4" -- CARBIDE CANON X
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X X
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X X
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X X
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X by X
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X Z. DeBuggah of the Folo Zone Gang. X
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X X
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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<^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^>
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< >
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< Content Hazard Rating -- Serious. >
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< >
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< >
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< Hazard Type -- Explosion & Flying >
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< Pieces. >
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< >
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< Special Precautions -- * EYES * >
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< Wear eye protection (safety- >
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< glasses). >
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< >
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<vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv>
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YOU WILL NEED:-
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A metal can with a press on lid. Examples are paint cans, or Hershey's Coco
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or Nestle's Quik cans. The new paper cans will work too but they wear out fast.
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A tank of acetylene or the ACETYLENE GENERATOR from the preceeding file in
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this series <FZFF03>.
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THE SETUP/ASSEMBLY:-
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Drill or poke a small hole in the middle of the bottom of the metal can
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of 1/16" or less, diameter. Drill or poke a similar hole in the middle of the
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lid of the can. Put a piece of waterproof tape (like black electricians tape)
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over the outside of each hole.
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USING IT:-
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The easiest way to safely load the "Canon" is to begin by filling it with
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water and then using it in a collection trough (Like the one shown in FZFF03;
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Acetylene Gas). The bubbler tube can be connected to an acetylene tank such
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as on a welders torch, or the Acetylene Generator or bags of acetylene filled
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with the Generator shown in FZFF03. Once the can is full of gas (after the water
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has all drained out and bubbles start coming from under-neath the inverted can,
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press on the lid, and leave the tape in place.
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IN PRINCIPLE:-
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Once you take the <NOW LOADED> "Canon" to where you want to use it, by
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setting the can on something that will keep it off the ground and is ventillated
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underneath, countdown can be started. Remove the tape from both holes. Since
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Acetylene is lighter than air, air will begin entering the bottom hole as
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acetylene floats out the top. The flow is just about right to make a lantern
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flame above the exit hole at the top. Promptly light the top hole of the can and
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and get back, deliberately, as you will have several minutes to wait. (The time
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depends on the size of the can you use and the size of the pinholes you put in
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it.)
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At the beginning, the can contains and vents only acetylene so that only
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above the can can it get enough air to burn, and only the gas which has exited
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is flamable. As air comes in the bottom, though, it begins to mix with the
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gas inside the can so that the mixture becomes increasingly activated with oxygen.
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Eventually the air level will reach its Flash Ratio, and the flame from the
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top of the can will move down inside, igniting all the acetylene that remains
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inside the can AT ONCE, and the "Canon" GOES OFF.
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FIRING PHILOSOPHIES:-
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Straight off you will see that you have a choice of setting off the shot
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with the lid up (to shoot the lid) or the lid down (to shoot the can) into the
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air. Also, because the fuse flame is sensitive to wind, you may want to
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fashion a chimney (or "Barrel") out of another can, a roll of linoleum or formica, or
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a length of PVC pipe of suitable diameter. This has two additional advantages
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beyond keeping the flame lighted, in that it dramatically enhances the BOOM,
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but also improves your control over the direction of the projectile ejected.
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By loading many canisters with their holes taped, before hand, you then
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have yourself an easy reloader, cartridge fashion.
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Another variation is to put the pinholes on opposite sides of the metal
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can and then mounting it in the "Barrel" horizontally. In this case, a backstop
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is needed and the chimney cannot be part of the "Barrel".
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Some of my best shots have been 5 gal ice cream carton or hat box One-
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Shotters, filled dry from an acetylene tank at a wide setting. Because of the
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uncertainty of this fill method, these canons were lit with sparklers on the
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end of a 12 foot pole.
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This kind of canon readily lends itself to loudness, altitude and
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distance competitions, since it's all hand made.
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