Ares

The Ares single-stage, liquid-propellant ICBM was the objective of propulsion studies at both Aerojet and Rocketdyne.

The objective was to attain a high enough specific impulse through use of high chamber pressure and a deployable nozzle extension to obtain intercontinental or orbital performance using a single rocket stage. The project was halted when Secretary of Defence McNamara decreed that all future ICBM's would only use solid propellant.

LEO Payload: 4,000 kg (8,800 lb). to: 160 km Orbit. at: 28.50 degrees. Total Mass: 150,000 kg (330,000 lb). Core Diameter: 3.00 m (9.80 ft). Total Length: 30.00 m (98.00 ft). Span: 3.00 m (9.80 ft).