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INTERNATIONAL - A video capture thrilling moments when a Boeing jet crashed, caught fire and exploded.
However, it is not a video showing a plane crash, but part of the research for the US space agency, NASA.
In addition, the video released this comes from 1984 when NASA is working to improve aviation security.
In a trial called a "demonstration of a controlled collision", NASA includes a variety of sensors and cameras into the old Boeing 720 aircraft before the fly.
Of the 14 trials performed, recorded demonstrations are the largest and carried on Rogers Dry Lake at Edwards Air Force Base, California.
The test is done to try additional substance in the fuel which is believed to reduce the chances of an explosion when the accident happened.
The plane, which was destroyed that provided by the Federal Aviation Agency (FAA) and controlled remotely.
Inside the plane was placed dolls to occupy the passenger seat in the cabin of the airplane.
"The plane was used for a variety of safety related experiments when the collision occurred," a statement from NASA.
"Some of that is tested for example, new design seat, the flight data recorder, air kitchen, storage room, fire-resistant materials in the cabin, and fire resistant window," added NASA.
In 14 trials, the Boeing 720 is controlled from the ground for 16 hours and 22 minutes, including 10 take-off, landing 60, and 13 landings were unsuccessful.
On December 1, 1984, the aircraft took off for the 15th time from Edwards Air Force base.
When flying, the plane containing 34,500 kilograms of Jet-A fuel that has been modified. When flying, the aircraft turned left and climbed to an altitude of 2,300 feet. The plan is the plane landed without landing gear in the gravel runway that had been prepared.
The goal is to land the plane with the wings level right in the middle of the runway.
The reason is that the fuel does not spill when both wings were torn eight steel columns anchored in the bottom of the dry lake.
Unfortunately, when the jet plane that reduce the height of flight, the left wing touching the ground, before the pole penyobek.
"As a result, the aircraft's nose twisted to the left when the plane was gliding on the lake surface dry within an angle of 45 degrees," said NASA.
"As a result, one pole stuck to the engine on the right wing, destroying the engine and causing a fuel leak extraordinary that plane burst into flames," NASA said.
"The aircraft was kept sliding toward the left so broke right wing broken and folded when the burning fuselage was great," said NASA.
So tremendous explosion made officers spent an hour to completely extinguish the fire.
Experiment was tipped to never use additives in fuel and ending effort FAA ordered the airline to use the additional material.
Nevertheless, the FAA said the experiments which cost 5-7 million dollars was very bermaanfaat as well as to test all new fixtures on air in real conditions.
