Canteloupe Cannon
Posted: Sat Feb 12, 2005 11:40 pm
<div align="center">CANTELOUPE CANNON
Provided By - DR
This afternnon I successfully launched 7 canteloupes, and 2 small watermelons. They averaged in weight from 3 1/2 lbs. to a little over 4 lbs.
The Chamber and Barrel is one length of PWEAGLE 6" IPS SDR21 pipe rated @ 200psi.-- the Chamber portion is 42" long, and estimated at 1253.33 cubic inches. This includes the area inside of the female adapter, and the hollow portion of the 6" endcap. The Barrel portion of the pipe is 60" long, giving me an estimated 0.74:1 ratio.
I used a 1/2" x 12" meter pipe set @ 100psi, and injected twice for each shot. ( 4.507 % fuel mixture ) -The "report" of each firing was louder than my 4" Unione'd Hybrid with a 2x/2atm mix.
I had this thing strapped to an aluminum ladder (that folds into many different configurations). I had to brace the edge of my shoe against the rear foot of the ladder for each shot because the recoil was alittle more than I had expected.
Each shot ( at about a 20 degree angle ) went well over 100 yds. A 55 gallon drum was annihilated. A "JR. Football" was lost in the rocky hillside. - But no distance records set. I need to fabricate some sort of cradle or box so that I can shoot at 35- 90 degree angles.
"IF" this thing generated close to 40psi, it will have put out the same amount of "thrust" as dual 2" pnuematic valves dumping (unrestricted) at 178psi!
Provided By - DR</div>
Provided By - DR
This afternnon I successfully launched 7 canteloupes, and 2 small watermelons. They averaged in weight from 3 1/2 lbs. to a little over 4 lbs.
The Chamber and Barrel is one length of PWEAGLE 6" IPS SDR21 pipe rated @ 200psi.-- the Chamber portion is 42" long, and estimated at 1253.33 cubic inches. This includes the area inside of the female adapter, and the hollow portion of the 6" endcap. The Barrel portion of the pipe is 60" long, giving me an estimated 0.74:1 ratio.
I used a 1/2" x 12" meter pipe set @ 100psi, and injected twice for each shot. ( 4.507 % fuel mixture ) -The "report" of each firing was louder than my 4" Unione'd Hybrid with a 2x/2atm mix.
I had this thing strapped to an aluminum ladder (that folds into many different configurations). I had to brace the edge of my shoe against the rear foot of the ladder for each shot because the recoil was alittle more than I had expected.
Each shot ( at about a 20 degree angle ) went well over 100 yds. A 55 gallon drum was annihilated. A "JR. Football" was lost in the rocky hillside. - But no distance records set. I need to fabricate some sort of cradle or box so that I can shoot at 35- 90 degree angles.
"IF" this thing generated close to 40psi, it will have put out the same amount of "thrust" as dual 2" pnuematic valves dumping (unrestricted) at 178psi!
Provided By - DR</div>