An aerospace engineer explains the science behind splashdown.
ArticleBody:This article was originally featured on The Conversation. For about 15 minutes on July 21, 1961, American astronaut Gus Grissom felt at the top of the world – and indeed he was. Grissom crewed the Liberty Bell 7 mission, a ballistic test flight that launched him through the atmosphere from a rocket. During the test, he sat inside a small capsule and reached a peak of over 100 miles up before splashing down in the Atlantic Ocean.
typically uses designs with bright colors, such as orange, which make them easy to spot. They’re also huge, with diameters of over 100 feet, and each reentry vehicle usually uses more than one for the best stability. The first parachutes deployed, called drag parachutes, eject when the vehicle’s velocity falls below about 2,300 feet per second . Even then, the rocket can’t crash against a hard surface. It needs to land somewhere that will cushion the impact.
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