Jan 28, 2016 · When Challenger exploded 73 seconds after liftoff, Ebeling and his colleagues sat stunned in a conference room at Thiokol's headquarters outside Brigham City, Utah. They watched the...

Mar 7, 2021 · Allan McDonald, who directed the booster rocket project at NASA contractor Morton Thiokol, urged delaying the launch of the space shuttle before it exploded in 1986. He has died at age 83.

Allan James McDonald (July 9, 1937 – March 6, 2021) was an American engineer, aerospace consultant, author [1] and the director of the Space Shuttle Solid Rocket Motor Project for Morton-Thiokol, a NASA subcontractor.

Morton Thiokol engineers determined that the cold temperatures caused a loss of flexibility in the O-rings that decreased their ability to seal the field joints, which allowed hot gas and soot to flow past the primary O-ring.

This essay provides a summary of important events leading to the Challenger disaster. Plus, a detailed account will show why the off-line telecon caucus by Morton Thiokol Management constituted the unethical decision-making forum which ultimately produced the management decision to launch Challenger without any restrictions.

Mar 8, 1988 · WASHINGTON — The government and rocket manufacturer Morton Thiokol paid $7,735,000 in cash and annuities, dividing the cost 40-60, to settle all claims with the families of four of the crew...

Feb 6, 2012 · Roger Boisjoly was a booster rocket engineer at NASA contractor Morton Thiokol in Utah in January, 1986, when he and four colleagues became embroiled in the fatal decision to launch the Space...

Morton-Thiokol discovered this joint rotation as part of its testing program in 1977. Thiokol discussed the problem with NASA and started analyzing and testing to determine how to increase the O-ring compression, thereby decreasing the effect of joint rotation.

Jan 28, 2016 · On the evening of Jan. 27, 1986, a group of engineers employed by rocket booster manufacturer Morton Thiokol pleaded against launching the Challenger space shuttle the next morning. The temperature at lift-off was expected to be no more than 26°F.

Sep 16, 2020 · Brian Russell retired from being an engineer for the solid rocket booster program in 2015. He was loyal to Morton Thiokol throughout its redesign and re-branding and saw it turn to ATK Thiokol, which became defunct in 2007 and was succeed by Orbital ATK. He left the organization before it ultimately merged with Northrop Grumman in 2017.