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edward replied to the topic "Smash Rocketry New Group Project – The Proton M" – 5 years, 11 months ago
After talking tentative weights it looks like we will need three parachutes. One 196″ and two 160″. All are sized for under 15 feet/second descent rate. We will be using 75 yards of 66″ wide ripstop for these.One concern is… Read more»