jetblueguy22 From United States of America, joined Nov 2007, 2885 posts, RR: 4 Posted (1 year 10 months 2 weeks 2 days 1 hour ago) and read 3437 times:
AIRLINERS.NET CREW HEAD MODERATOR
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.
All of the opinions stated above are mine and do not represent Airliners.net or my employer unless otherwise stated.
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.