|Engine 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.
Block D, article number 11S824. Without guidance unit (navigation commands come from payload). Originally designed as N1-L3 lunar expedition launch vehicle lunar orbit insertion/lunar crasher stage. Adapted for use with Proton UR-500K as a fourth stage for manned circumlunar flight. Further used to launch large Lavochkin bureau unmanned lunar/planetary spacecraft. Flown from 1967 to 1975.
|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.
Credit: © Mark Wade. 5,136 bytes. 222 x 370 pixels.