Our launch today was very unsucessfull. The most time that we were able to reach was 4 seconds and our rocket ended up on the roof of Konia. I think that we should add more psi to our rocket so that it would go higher in the air. Today we also decided to add 750 ml of water than 500 ml. Our parachute was not deploying properly, when the rocket launched it turned sideways and the parachute did not fill with air. We plan to add tape to the cone and the parachute so that it will ensure that the parachute will fill. From last week we used one big parachute rather than two smaller ones. I think that if we are able to get the larger parachute to fill it will increase our time by at least 5 seconds. When we finaily retreaved our rocket we were able to reach 6 seconds. Our rocket did not go that high but our parachute slowed our rocket down a lot.
At least you guys got your rocket down! :) It took me and Keana a while to get it down, but we finally got it :P I think what was a big factor in your rocket's "roofing" was the weather (obviously) and also that your launching station was close to Konia and the wind was blowing that way anyway. You might want to try like 50-55psi, that's around what we've been using, and we pull the string like right after so we don't lose any pressure.
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