Today was a successful launching day. Our water bottle rocket stayed in the air for 5 seconds. Before launching we made some adjustments. First we added another fin to our water bottle rocket so there were three fins which would make it more stable. We then added a parachute which was constructed of a plastic bag which was secured by duct tape. It was taped onto the top of the bottle around the circumference. We added a cone on top of the parachute as well which then flew off so the parachute could deploy. To weigh the cone down, we added the bottle cap. We pumped up the psi to 60 and filled the bottle one fourth of the way with water. We still have more adjustments to make, but it was good enough to pass for today.
Good job at getting your parachute to deploy! We had a lot of trouble with ours deploying. How did you get it to deploy? I researched some strategies and this website http://scioly.org/wiki/Bottle_Rocket,suggested that we make tabs to support the cap so it doesnʻt get stuck onto the top. To increase the airtime my suggestion is to put more weight at the top. When we increased our mass it also increased the airtime. Overall good job!
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