Closer to the Moon |
| Tuesday, 19 December 2006 17:22 | |||
Disaster overcomePreparations for a Moon Landing
Reaching the Moon did not come easily. On January 27, 1967, the crew of the first piloted Apollo mission, a planned two-week cruise in Earth’s orbit, died when a flash fire swept through their sealed command module during a ground test. It was discovered that the tragedy was the result of a series of design flaws, including the use of pure oxygen at high pressure inside the crew cabin on the launch pad and the fact that the cabin door opened inward, making it impossible to open due to the high pressure inside - future cabins had outward popping doors and they were no longer pressurized with pure oxygen. The Russians also suffered a tragic loss in April 1967 with their new Soyuz spacecraft. Soyuz was designed to carry up to three people into Earth orbit. It was supposed to be flown mostly by automatic pilot or ground control. During the mission, Vladimir Komarov, the pilot, was scheduled to link up with a second, unpiloted Soyuz, but that had to be cancelled because one of the Soyuz 1’s solar panels malfunctioned. Later, there were problems with the Soyuz 1’s automatic control system, and Komarov was ordered to manually steer the craft back to the Earth. He was able to do this, but the Soyuz 1’s parachutes did not deploy properly and it slammed into the ground at high speed. Komarov was killed instantly. Meanwhile, in November, the first unpiloted test flight of America's giant Saturn V moon rocket, whose creation was guided by Werner von Braun, took place. Together with the Apollo spacecraft, the Saturn V stood 363 Earth feet above its launch pad. At its liftoff at the Kennedy Space Center, the rocket’s first stage engines delivered 7.5 million pounds of thrust.
In October, Apollo 7 sailed through a problem-free 11 day Earth orbit test flight, validating the new, fireproof command module. NASA then gave the go ahead for Apollo 8’s lunar voyage. Bill Anders, Frank Borman and Jim Lovell prepared to become the first Humans to leave Earth orbit. In the Russia, Alexei Leonov and flight engineer Oleg Makarov were training to fly a Soyuz variant called Zond in a figure 8 around the Moon, sometime in the fall/autumn of 1968. However, there were problems with Zond on two unpiloted test flights, and the Russian space planners denied permission for Leonov and Makarov to launch. The Americans would make the first trip to the Moon.
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