What was the Challenger disaster?
The catastrophe Challenger appeared when the shuttle of Challenger over the Ocean 73 seconds after the launch, on the morning of January 28, 1986. The disaster caused the 32 -month moratorium at the opening of the shuttle and the creation of the Rogers Commission, which included Nobel's laureate Richard Feynman, explored the cause of the tragic incident.
After the investigation of the Rogers Commission, it found that the Challenger disaster was due to the failure of the O-ring seal on a solid missile booster in Liftoff. This created a violation that allowed the flammable material from the inside to interfere with the adjacent and much larger outer tank, leading to structural failure. The solid booster also separated from the shuttle. This disrupted the aerodynamic balance of the vessel, which caused it to break up. Varge of the vessel was submitted to the factors of acceleration up to 20g, and only for its design limits. At such high speeds it is very fast and deadly. After extensive search, many shuttle components were obtained from the seabed. Some of the crew remains were buried at the Challenger monument at the National Cemetery in Arlington.
The catastrophe Challenger is a case study at the natural risk of space flight. On February 1, 2003, the Columbia spacecraft disintegrated into reentry and killed seven other astronauts and showed that the shuttle had more than one catastrophic failure.
The Rogers Commission found that NASA organizational culture was the primary reason for the accident. NASA managers have been aware of the weakness in O-rings since 1977, nine years earlier, but could not solve it. These weaknesses were caused by a temperature-bouncing design in the O-ring by an external supplier Morton Thiolol. Starting took place on a particularly cold night during whichE on the tanks accumulated the ice and caused the O-rings to fall below their minimum operating temperature. Even a few seconds after starting, the O-ring failure has already allowed the overheated gas to escape from the rocket power. A little more than a minute after the start, it resulted in an abnormal cloud and a cascade of effects that led to the destruction of challenger .