Proton 11S824F
Engine 11D68 detail
Close-up view of the 11D68 Block D lunar crasher stage showing detail of the BOZ orientation/ullage thrusters that control the stage during coast, restart, and manoeuvre.
Credit - © Mark Wade
Gross Mass: 16,900 kg (37,200 lb). Empty Mass: 1,800 kg (3,900 lb). Thrust (vac): 85.020 kN (19,113 lbf). Isp: 352 sec. Burn time: 610 sec. Propellants: Lox/Kerosene. Diameter: 3.70 m (12.10 ft). Span: 3.70 m (12.10 ft). Length: 5.50 m (18.00 ft). Country: Russia. No Engines: 1. Engine: RD-58M. Status: Out of production. Cost $ : 4.000 million. First Flight: 1988. Last Flight: 1996. No Launched: 3. Other designations: 11S824; Block D; D-1-e.

Also known as Block D-2; article number 11S824F. Without guidance unit (navigation commands come from payload). Successor to 11S824M. Used for launch of Lavochkin Mars-bound spacecraft in 1988 and 1996.

Used on Launch Vehicles:  
 
 
 
 
 
 
 
 
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