Plastic Bottle Rocket Launcher

My 9 yr old son built this air rocket launcher using a 2 litter plastic bottle, sprinkler system parts, and a remote control assembly from an old hovercraft. It started out a couple of years ago as an acorn gun powered by a foot air pump and evolved to this remote control launcher. My only contribution was to take him to the store to buy parts and submit this for him. I dont know the exact names of all the parts or the exact sizes but will we will do our best to describe them.

Step 1 Parts

Parts include
Bicycle foot pump,
hose from washing machine,
tire valve,
5 1/2 hose clamps,
Male quick release for garden hose,
4 " of 3/4 in rubber hose - came from an old pool pump,
2 litter Soda bottle - wrapped in duct tape,
Standard Y valve for outside hose spicket,
Another hose quick release shoved into 5" rubber hose and screwed into the Y,
Wire wrapping to help keep the Y assembly in the bottle.
Simple remote control system from old hovercraft. It just supplies power to the electric sprinkler valve,
Two 9 volt batteries,
Electric Sprinkler valve,
Another male quick release for garden hose,
10" of 1/2" rubber hose,
3/4" to rubber hose elbow from spare sprinkler parts,
3/4" PVC adapter - threaded into sprinkler valve,
6" of 3/4" PVC pipe,
3/4" to 1/2" PVC elbow,
6" of 1/2" sprinkler pipe, threaded at both ends,
1/2" to rubber hose elbow,
10" of 1/2" rubber hose.

Comments

[KnexFreek]

KEwL!

and tell yo son good job! :)