This page no longer updated from 31 October 2001. Latest version can be found at N1 Block D

Block D / 11D68
Block D / 11D68 - Aft view of the Block D lunar crasher stage and its 11D68 engine. The Block D would have taken the LK lunar lander to near the surface of the moon. This stage remains in use today atop the Proton rocket.

Credit: © Mark Wade. 52,122 bytes. 398 x 580 pixels.

Gross Mass: 18,200 kg. Empty Mass: 3,500 kg. Thrust (vac): 8,500 kgf. Isp: 349 sec. Burn time: 600 sec. Propellants: Lox/Kerosene Isp(sl): 0 sec. Diameter: 2.9 m. Span: 2.9 m. Length: 5.7 m. Country: Russia. No Engines: 1. RD-58 Status: Hardware. Comments: Block D adapted as lunar crasher stage.

Engine 11D68 detailEngine 11D68 detail - Closeup view of the 11D68 Block D lunar crasher stage showing detiail of the BOZ orientation/ullage thrusters that control the stage during coast, restart, and maneuver.

Credit: © Mark Wade. 43,376 bytes. 393 x 424 pixels.

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Last update 12 March 2001.
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