Today in class we timed out bottles without any modifications. We again used 500 mL of water and filled the bottle, then did the same thing we did on the first launch. After timing it, we noticed it was only 6 seconds. For the final we need to keep the bottle in the air for 10 seconds. So we only did one small modification to see if it helped the bottle stay in the air for a longer period of time.
As you can see in the second video, the modification we added to the bottle was an orange one on the top. We thought that by doing this, the surface area of the bottle would be smoother and there would be less resistance as it traveled. When we tested it, it went about the same height and stayed in the air for about the same length of time. After both testings, both times with and without the modification was a total of 6 seconds. Tonight we will try to add maybe some wings to it and maybe a parachute to help it stay in the air longer!
I'm sure the nose cone modification helps the rocket a lot, especially once the parachute is added to the rocket. Shelly and I plan to add both the orange cone for a nose cone and a parachute before tomorrow's launch. Hopefully it helps our stay in the air longer as well!
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