LK-1

LK-1 was a projected Soviet crewed lunar flyby spacecraft. It would be launched on a three-stage Proton launch vehicle. The project started in 1962 under the lead engineer Vladimir Chelomey, with the first flight planned for 1967.

The LK-1 had its origin in several early 1960s spacecraft projects under the generic names of kosmoplans and raketoplans.

In 1965 the project was cancelled in favour of the Soyuz 7K-L1 spacecraft.

Further developments came as the LK-700 direct-descent lunar lander program.

Configuration
The spacecraft consisted of the following modules:


 * ADU Emergency Engine Unit
 * VA Capsule (crew module)
 * PAB Equipment-Rocket System Block (service module)
 * RB Translunar Injection Stage

Characteristics

 * Crew Size: 2
 * Spacecraft delta v: 3,300 m/s
 * Electric System: 2.00 average kW.
 * Gross mass: 17,000 kg
 * Un-fuelled mass: 4,000 kg
 * Height: 5.20 m
 * Span: 7.27 m