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Gerkules Nuclear Tug
Gerkules Nuclear Tug - Gerkules Nuclear Electric Interorbital Tug

Credit: © Mark Wade. 2,089 bytes. 343 x 298 pixels.

Gross Mass: 21,000 kg. Empty Mass: 12,000 kg. Thrust (vac): 1 kgf. Isp: 3,000 sec. Burn time: 47,304,000 sec. Propellants: Xenon Isp(sl): 0 sec. Diameter: 4.1 m. Span: 25.0 m. Length: 20.0 m. Country: Russia. No Engines: 12. 11B97 Status: Study 1994. Used as: Energia-M - 2.

At the beginning of the 1990's a new type of nuclear generator was studied, that would have a capacity of 150 kW in the transport role and provide 10-40 kW to power spacecraft systems while coasting. This was designated ERTA (ElecktroRaketnovo Transportnovo Apparat). Technologies and concepts for this engine were studied by FEI and other organisations. A modular concept was adopted. In 1994 ERTA was studied for launch by Titan, Ariane 5, or Energia-M launch vehicles. The reactor weight was 7500 tonnes and it could provide up to 10 years of electrical power traded off against 1.5 years of powered flight.

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Last update 12 March 2001.
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