jetblueguy22 From United States of America, joined Nov 2007, 2550 posts, RR: 4 Posted (11 months 3 weeks 22 hours ago) and read 3095 times:
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I've seen a couple videos with recovery crews getting the SRBs from the Shuttle but I always found it interesting that they float. I have to imagine they weigh quite a bit. What makes them so buoyant? Is it just because the tanks are empty of fuel? I noticed they would pump water out of the nozzle so I'm not too sure if it could really be just the empty tanks.
I'm Here So It Worked-Every Pilot Who Made a Semi Unsafe Decision
Excerpt: Water impact occurs 295 seconds after separation at a velocity of 81 feet per second. The water impact range is approximately 140 miles off the eastern coast of Florida. Because the parachutes provide for a nozzlefirst impact, air is trapped in the empty (burned out) motor casing, causing the booster to float with the forward end approximately 30 feet out of the water.
FAA killed the purpose of my old signature: Use of approved electronic devices is now permitted.