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Parachute Project. By: Ross King. Understand. The purpose of this project was to keep an egg from breaking after throwing it off a 12 meter high drop. We had to create a two parachutes, the main parachute and a drag chute to bring the main parachute out, to keep the egg from breaking. Explore.
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Parachute Project By: Ross King
Understand • The purpose of this project was to keep an egg from breaking after throwing it off a 12 meter high drop. • We had to create a two parachutes, the main parachute and a drag chute to bring the main parachute out, to keep the egg from breaking.
Explore Ideas: • Multiple small parachutes • Huge main parachute • A big parachute and under it, a smaller parachute with a hole in the middle • Add flaps to the egg container • Lightweight egg container
Define Best Solutions: • Having a big main parachute • A lightweight egg container • Make sure the drogue chute pulls on the main chute with enough force to deploy it • Short strings to prevent tangling
Ideate • Creating a ½ meter radius parachute • Creating a 1/5 meter radius drag chute
Refine • After realizing that our main parachute would not open, we had to make some adjustments • We changed the probes height to 20cm instead of 12cm for more volume • We changed the drogue chute to have a ¼ meter radius instead of 1/5 meter. • We made the strings of the main chute .5 meters instead of .8 meters
Solution • 130 g • We would rate ourselves a 6.5 because even though our parachute worked, it barely did and we completed it on the last day of testing.
Solution Cont. • If we were to do this project again, we would make the initial probe’s volume much larger and the main parachute larger, while also using lighter material for the probe.
Solution Cont. • Our actual terminal velocity of the probe was less than 2 meters per second each trial (see chart in previous slide) • The extra surface area from the drogue chute helped our main chute slow the probe down • It was also windy when we dropped our probe, aiding in opening the chute and slowing the probe down