Mars 1994 (original) (raw)


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Mars 1994


Keldysh Mars
Keldysh Mars
Credit: Jakob Terweij

Russian manned Mars expedition. Study 1994. Soviet / Russian design for a Mars expedition powered by RD-0410 bi-modal nuclear thermal engines. A crew of five would complete the trip to Mars and back in 460 days.

Status: Study 1994. Payload: 400,000 kg (880,000 lb). Thrust: 784.00 kN (176,250 lbf). Gross mass: 800,000 kg (1,760,000 lb). Specific impulse: 927 s. Height: 84.00 m (275.00 ft). Span: 18.00 m (59.00 ft).

By the 1980's test of the experimental RD-0410 nuclear thermal rocket engine had led to a definitive flight design. The design included bimodal use of the nuclear reactor to provide electrical power during dormant or cruise flight phases by means of a Brayton cycle turbine using xenon-helium coolant. The NPO Luch powerplant produced 20,000 kgf, with a thermal power of 1200 MW, operating time of 5 hours, and a specific impulse of between 815 and 927 seconds. During cruise operations the turbine would provide 50-200 kW of electric power, requiring 600 square meters of radiators. Two designs emerged using a cluster of three to four of these engines with a total powerplant mass of 50 to 70 metric tons. The 1989 layout of the Kurchatov Institute surrounded the crew quarters with liquid hydrogen propellant tanks to shield the crew from radiation from the reactors and cosmic rays. The radiators were positioned at the nose of the spacecraft. A more detailed 1994 design from the Keldysh Institute / NII-TP placed the radiators forward of the engines, followed by communications antennae, the living quarters (again surrounded by propellant tanks), followed by two large landing craft (one for Mars, one for Earth) docked laterally at the nose. The crew of five would complete the trip to Mars and back in 460 days. Total time of thrusting engine operation for the 800 metric ton, 84 m long craft was 6 hours.

From fore to aft the spacecraft consisted of:

Propellant made up about half of the total starting spacecraft mass.

Mars 1994 Mission Summary:

Crew Size: 5. Electric System: 200.00 average kW.



Family: Mars Expeditions. Country: Russia. Launch Vehicles: Mars tactical rocket, Energia. Propellants: Nuclear/LH2. Agency: Kurchatov bureau.


Photo Gallery



Kurchatov Mars Space Kurchatov Mars SpaceNuclear-thermal Mars expedition spacecraft as designed by the Kurchatov Institute in 1989.Credit: © Mark Wade


1994 NTR Mars Design 1994 NTR Mars DesignNuclear thermal Mars spacecraft design by NII-TP/Keldysh Institute.



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