Had fun on Sunday launching a test water rocket with dual drop away dual boosters.
Forgot a pressure gauge so had to guess on main rocket. Suspect we were only at 60-70psi.. Booster with 20mm nozzles at just 40-50psi by hand pump. Main rocket with 9mm nozzle. No metal components are used at all. Used irrigation tubes and bamboo skewers (with points cut off) to join.
Boosters are just single 1.25mm bottles. Tommy timer for deployment on this test.
First launch, boosters failed to separate. Second launch went fine.
Forgot a pressure gauge so had to guess on main rocket. Suspect we were only at 60-70psi.. Booster with 20mm nozzles at just 40-50psi by hand pump. Main rocket with 9mm nozzle. No metal components are used at all. Used irrigation tubes and bamboo skewers (with points cut off) to join.
Boosters are just single 1.25mm bottles. Tommy timer for deployment on this test.
First launch, boosters failed to separate. Second launch went fine.
Back home to do a lot of modifications...
Will launch with much larger main stage next time, foam in main rocket and higher pressures etc. Just happy it worked at all. Sorry about footage but had issues driving cameras, pumping things up and launching at same time.
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