Tuesday, March 20, 2007

Day 2 (3/20)

What I improved on my plane was that I made a new wing for it that was based upon a glider wing design. It was sort of like a backward delta wing. It gave the plane a lot more lift, but there was a downside to that as well, there was too much lift, so the plane would try to do a loop the loop and hit the ceiling. I also added elevators on the horizontal stabilizers, but one of them broke off and then the plane started turning to the right. So when I did the test the plane veered off to the right and hit the wall. My first flight went 5.8 meters and my second flight (with the moded plane) went 4.5 meters.

We did the scientific method in class by doing all of the five steps. We did observation because we watched Mr. Davis fly some planes that worked well. We asked the question, How can I make the plane better? Then we (or most of us) formed a hypothesis, something like: My plane will now fly farther because of the bigger wings, or Now my plane is lighter so it will fly better. The experiment was to launch all of the standard fliers (on a yardstick catapult, so the results would be unaffected by different throws) and average the distances, then to launch all of the moded planes (in the same fashion) and average the flights. Then we analyzed the data and came to the conclusion that the moded planes did not fly as far as the standard planes, in fact only two people’s planes flew better than their standard versions.

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