American space tug. Study 1990. 1970's conceptual design of ion upper stage sized for use in the shuttle. It was nuclear-electric and intended for trans-Jovian planetary missions
Unit Cost $: 49.010 million.
Gross mass: 15,627 kg (34,451 lb).
More... - Chronology...
Unfuelled mass: 5,498 kg (12,121 lb).
Height: 18.00 m (59.00 ft).
Diameter: 4.40 m (14.40 ft).
Span: 4.40 m (14.40 ft).
Thrust: 274 N (61 lbf).
Specific impulse: 5,300 s.
Ion Notional electric/mercury rocket engine. 0.275 kN. Study 1981. Conceptual ion engine design of the 1970's for a shuttle-sized upper stage. Isp=5300s. More...
Electric/Mercury The many versions of electric engines use electric or magnetic fields to accelerate ionized elements to high velocity, creating thrust. The power source can be a nuclear reactor or thermal-electric generator, or solar panels. Proposed as propellant for some ion motors. More...
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