Our rocket design was very simple yet we designed it around our parachute being able to deploy easily. Our key engineering features that we had used on our rocket was our fins, nose cone, parachute and half domes.  As you can see the two half domes that we put on the side of the rocket were made so that air would shoot into the parachute on its way back down.  We had added four fins to our rocket to have it keep a straight path on its accent into the air.  The fins were attached by duct tape and tacky glue.  Our parachute was made from a large black garbage bag.  Instead of making a circle we left the bag as it was and attached strings to the bottom.  I believe that the way we folded the parachute played a big role in it opening right.  We had folded it in half 5 times (hot dog style) and then folded it in half three times the other way.  Our original nose cone was made out of the top of a soda cap and a golf ball for weight.  We were forced to change our design to a cone because our original nose cone and parachute was lodged in the koa tree.  On the last day that we launched we were not successful of reaching ten seconds because our parachute didn’t deploy and our rocket ended up on the roof of midkiff.  We also had made some adjustments from Thursday by taking off weights that were designed to make the rocket fall to the ground the right way.  With filling our rocket with 80psi and 800ml of water it might have only reach about 30 feet in the air; while without the weights our rocket reached about 100 feet in the air.  Throughout our rocket launches our times has increased and then toped out around six to seven seconds.   Looking back at our first launches we were only able to reach about 4 seconds without any modifications.  If we were to have another chance to build a rocket we would make our parachute into a circle and add a weight to our nose cone.  We feel that if our nose cone had come off on our final launch the parachute may have deployed.  Although the weather conditions were not the best on our launching days I would say that it helped a lot of other people reach their goal of ten seconds.  I believe that if we had taken the wind shifts into consideration on Thursday we might have reached our goal of ten seconds.

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