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Rocket sled

From Indiana Jones Wiki

The rocket sled was a high speed sled mounted on a set of rails. A rocket in the back propelled the sled forward. Sleds of this sort were used by the United States of America in the Cold War to test ejection seats and other equipment for aircrafts.

In 1957, Indiana Jones discovered a rocket sled stored underneath Hangar 51, where he fought Antonin Dovchenko. When Dovchenko accidentally engaged the sled's engine, the pair took off down the track, burning four Soviets and reaching speeds so high that Dovchenko lost consciousness.

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