LK-1
# 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
