Encyclopedia Astronautica

Hughes electric/xenon rocket engine. 0.14 mN. Flown in 1979. Isp=350s. The thruster for the Scatha experiment consisted of one electron bombardment engines using xenon propellant.

The thruster anode diameter was 3.6 cm, and an Yttrium-doped tungsten neutralizer was used. Beam power supply voltage was 1000 to 2000 V, and the power per thruster was 0.03 to 0.045 kW, producing 0.14 mN thrust at a specific impulse of 350 seconds. About 0.3 kg of propellant was carried. The longest ground test prior to launch was 600 hours, and in space the engine was operated intermittently over a 247 day period.

Electrical Input Power: 0.0450 kW.

Status: Flown in 1979..
Thrust: 0.0001 N (0.0000 lbf).
Specific impulse: 350 s.
First Launch: 1979.

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Associated Countries
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Associated Manufacturers and Agencies
  • Hughes American manufacturer of rockets, spacecraft, and rocket engines. Hughes Aircraft Co. , USA More...

Associated Propellants
  • Electric/Xenon 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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