Monday, November 30, 2020

Testing space reactors against various accidents and failure modes

SNAP and other forms of nuclear reactor, intended for use in space, pose unique engineering and safety challenges. They must be light weight and yet must safely allow for the dangers of rocket launches and reentry without threatening civilians on the ground. This archive footage shows simulated SNAP reactors undergoing a range of tests, from exposure to liquid oxygen to high speed impacts with water, all to see when/how they would fail in an accident.

Friday, February 26, 2016

B-21 bomber revealed

The B-21 bomber, formerly the Long Range Strike Bomber (LRS-B) is a proposed long-range strategic bomber for the United States Air Force, intended to be a heavy-payload stealth aircraft capable of carrying thermonuclear weapons. Initial capability is expected in the mid-2020s. A request for proposal to develop the aircraft was issued in July 2014. The Air Force plans to purchase 80–100 LRS-B aircraft at a cost of $550 million each (2010 dollars). A development contract was awarded to Northrop Grumman in October 2015.