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The sign accompanying the Redstone A-6 rocket engine. It reads

Redstone Rocket Engine

The Redstone rocket engine was one of the United States' first operational large-scale, liquid-fuel rocket engines. Development began in 1950, and on January 31, 1958, a modified Redstone rocket called a Jupiter-C launched Explorer I, the first successful U.S. Satellite, into orbit. On May 5, 1961, a Redstone launched Alan B. Shepard, the first American astronaut to enter space. The Redstone was the forerunner of other important large-scale engines, including the main engine for the Space Shuttle.

Transferred from the U.S. Army Center of Military History, Museum Division

Length:	3.3 m (10 ft. 9 in.)
Thrust:	35,400 N (78,000 lb)
Propellants:	liquid oxygen, alcohol
Manufacturer:	Rocketdyne Div., North American Aviation
	A19910078000