Monday May 28th 2007
Today I researched parachutes. I had made parachutes before for the Estes model rockets but other than that I had no idea what to do. One thing I didn't know was what size to make the parachute.
After looking around a bit on the web I came across this website. It has formulas for how big to make a circular parachute depending on weight of the rocket and the desired fall velocity. I made a calculator program from that so that I could do some quick calculations. The only problem I find with this formula is that it accounts for only circular parachutes with no holes in them. A parachute with a hole in the top has much better balance and won't oscillate so much.
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