Project MX-774 Hiroc was a joint effort between the Army Air Force (AAF) and
Consolidated Vultee to develop an Intercontinental Ballistic Missile
(ICBM). This project later became the Atlas. Due to a lack of funding and
better proposals from other vendors the MX-774 was prematurely terminated.
Even though the project was cut short there were three flights which did
demonstrate innovative design concepts including ballon construction which
made the propellant tanks part of the airframe, gimballed gyroscopic
controlled motors, and a separable warhead.
Dimensions
Length: 31 ft. 7 in. (9.63 m)
Diameter: 30 in. (76 cm)
Finspan: 6ft 10 in (2.08 m)
Empty Weight: 1,205 pounds
Launch Weight: 4100 lb (1800 kg)
Propellant: Liquid (Alcohol/Liquid Oxygen)
Best Altitude: 40 miles (65 km)
First Firing: July 1948
Updated: 5-20-2008
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