This page no longer updated from 31 October 2001. Latest version can be found at DAC Helios ISI

Family: Nerva. Country: USA. Status: Study 1963.

Nuclear, recoverable upper stage boosted above atmosphere by minimum chemical stage. Improved Specific Impulse chemical stage uses many engines feeding into single large nozzle. Douglas/Bono design approach to same concept as Convair/Ehricke Helios.


LEO Payload: 454,500 kg. to: 325 km Orbit. at: 0.0 degrees. Liftoff Thrust: 4,074,360 kgf. Total Mass: 2,948,400 kg. Core Diameter: 24.4 m. Total Length: 60.0 m. Flyaway Unit Cost $: 105.70 million. in 1985 unit dollars.


Back to Index
Last update 12 March 2001.
Definitions of Technical Terms.
Contact Mark Wade with any corrections or comments.
Conditions for use of drawings, pictures, or other materials from this site..
© Mark Wade, 2001 .