This page no longer updated from 31 October 2001. Latest version can be found at RD-58Z

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.

Manufacturer Name: RD-58Z. Government Designation: 11D58Z. Designer: Korolev. Application: Zenit stage 3. Used on stages: Zenit-3. Used on launch vehicles: Zenit. Propellants: Lox/Kerosene Thrust(vac): 7,240 kgf. Thrust(vac): 71.00 kN. Isp: 361 sec. Burn time: 660 sec. Mass Engine: 300 kg. Diameter: 2.9 m. Chambers: 1. Chamber Pressure: 78.00 bar. Area Ratio: 189.00. Country: Russia. Status: Developed 1981-1990. References: 42 .
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Last update 12 March 2001.
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© Mark Wade, 2001 .