Today Brittany was absent so Leila helped me with todays launch. We had to do 2 different launches. One was a launch with no changes and the other one was a launch with an alteration. The first launch we did today was the a launch with just the 2-liter bottle (no change). For both launches we put 50 psi of pressure into the water bottle and filled it with 1/4th water. It was kind of like another attempt from yesterdays failed launch. What we did differently was we used a launch system that had 3 guide sticks to prevent it from drifting while a person was pumping pressure into the bottle. We thought that I would work out completely fine but it somehow still managed to drift and actually was shot towards a group of innocent bystanders. Here is a video on how the first launch went.
For our second launch we decided to put fins on the side of our rocket to create more stability in our rocket's flight. Our fins were made out of cardboard because it is a light material and would not weigh the rocket down. We initially had 3 fins on our rocket but when we got the launching station there was a malfunction and one accidentally fell off. Our rocket with 2 fins actually had a better flight time because it seemed like it was a little more balanced then the rocket with no change.
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I really believed that the fins helped in the launching because it added stability unto the entire launching. Next time, try use three fins to see the difference between the two launchings and put them lower towards the neck of the bottle. Overall, you did a good job by yourself Nicole!
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