# LK

> lunar lander developed for the Soviet lunar program

**Wikidata**: [Q940767](https://www.wikidata.org/wiki/Q940767)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/LK_(spacecraft))  
**Source**: https://4ort.xyz/entity/lk

## Summary
LK was a lunar lander developed for the Soviet lunar program, designed to transport cosmonauts from lunar orbit to the Moon's surface and back. It was part of the larger L-3 lunar mission architecture and underwent uncrewed test flights before the program's cancellation.

## Key Facts
- LK was a lunar lander developed for the Soviet lunar program, also known by alternative names including 11F94, Lunny korabl, LK-1, LK 1, Lunnaya Kabina, ЛК, and лунная кабина
- The lander had a height of 5.205 meters and a diameter of 4.5 meters with a volume of 5 cubic meters
- LK was part of the L-3 program, which included a cancelled command module and lunar module for the Soviet lunar program
- The lander underwent test flights with Cosmos satellites: Kosmos 379 (first uncrewed test), Kosmos 398 (second uncrewed test), and Kosmos 434
- LK was classified as an abandoned entity and spacecraft model in Soviet space technology
- The project had 21 sitelinks across Wikipedia and related projects
- The GRAU (Main Missile and Artillery Directorate) index for the project was 11Ф94
- LK was described in multiple languages including Bulgarian, Commons, Czech, German, English, Spanish, French, Hebrew, Hungarian, and Indonesian

## FAQs
### Q: What was the purpose of the LK lunar lander?
A: The LK lunar lander was designed to deliver cosmonauts to the Moon's surface as part of the Soviet lunar program. It was intended to be the landing component of the larger L-3 lunar mission architecture.

### Q: How many test flights did the LK undergo?
A: The LK lunar lander underwent at least three uncrewed test flights: Kosmos 379 (first test), Kosmos 398 (second test), and Kosmos 434. These test flights were conducted using Cosmos satellites as part of the Soviet lunar program.

### Q: Why was the LK lunar lander project abandoned?
A: The LK project was abandoned when the Soviet lunar program was cancelled. The Soviet Union had lost the Moon race to the United States, and subsequent focus shifted to other space programs including long-duration space stations.

### Q: How did the LK compare to the American Apollo lunar module?
A: While detailed comparisons are limited in the source material, the LK was designed as a compact lunar lander with specific dimensions (5.205 meters height, 4.5 meters diameter) that represented the Soviet approach to lunar landing technology within the L-3 program architecture.

## Why It Matters
The LK lunar lander represents a significant, albeit unrealized, chapter in the history of space exploration. As part of the Soviet lunar program, it demonstrated the USSR's commitment to competing in the Space Race with the United States, even after American astronauts had already landed on the Moon. The engineering and design work on the LK contributed to Soviet space technology development in the 1960s-1970s, influencing later spacecraft programs. The fact that the LK underwent test flights shows that Soviet lunar landing technology was more advanced than commonly acknowledged, with specific engineering solutions adapted for the unique challenges of lunar descent and ascent. The abandonment of the LK program marks a pivotal moment when the Soviet space program shifted focus from lunar missions to long-duration space stations, setting the trajectory for later Soviet and Russian achievements in space habitation.

## Notable For
- Being the Soviet Union's primary lunar lander design intended to compete with the American Apollo lunar module
- Having undergone multiple test flights (Kosmos 379, 398, and 434) demonstrating the Soviet lunar program's technical progress
- Featuring a compact design with a height of 5.205 meters and diameter of 4.5 meters, defining its operational capabilities
- Being part of the L-3 lunar mission architecture, which represented a different technical approach to lunar exploration compared to American methods
- Having a GRAU index of 11Ф94, indicating its formal classification within Soviet military-industrial complex documentation

## Body
### Overview
LK was a lunar lander developed for the Soviet lunar program, intended to transport cosmonauts from lunar orbit to the Moon's surface and back. The lander was a critical component of the larger L-3 lunar mission architecture.

### Design Specifications
The LK lunar lander had specific technical dimensions that defined its operational capabilities:
- Height: 5.205 meters
- Diameter: 4.5 meters
- Volume: 5 cubic meters

These specifications made it a relatively compact lunar lander compared to some other designs of the era.

### Program Context
LK was part of the broader L-3 program, which included:
- A command module for the lunar mission
- The lunar lander itself
- A lunar orbital rendezvous system

The L-3 program was ultimately cancelled, leading to the abandonment of the LK lander project.

### Test Program
The LK lunar lander underwent several uncrewed test flights using Cosmos satellites:
- Kosmos 379: First uncrewed test of the Soviet lunar module
- Kosmos 398: Second uncrewed test flight of the Soviet lunar module
- Kosmos 434: Another test associated with the lunar program

These test flights demonstrated that Soviet lunar landing technology had progressed beyond conceptual stages.

### Terminology and Classification
LK was known by several alternative names and identifiers:
- 11F94 (GRAU index)
- Lunny korabl
- LK-1
- LK 1
- Lunnaya Kabina
- ЛК (Russian abbreviation)
- лунная кабина (Russian for "lunar cabin")

The project was classified as both a spacecraft model and an abandoned entity in Soviet space documentation.

### Documentation and Recognition
The LK lunar lander has been documented across multiple platforms:
- 21 sitelinks across Wikipedia and related projects
- Descriptions in 10 different languages including English, German, French, Russian, and others
- A dedicated Wikipedia entry titled "LK (spacecraft)"
- Wikimedia Commons imagery available at https://commons.wikimedia.org/wiki/Special:FilePath/LK-3_lunar_lander_engineering_test_unit.jpg
- A 3D model available at https://commons.wikimedia.org/wiki/Special:FilePath/LK_Lander.stl

### Current Status
The LK lunar lander remains an important historical artifact of the Space Race era, representing Soviet lunar landing technology that was developed but ultimately never utilized. The project's cancellation marked a shift in Soviet space priorities toward long-duration space stations rather than lunar exploration.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "LK",
  "description": "Lunar lander developed for the Soviet lunar program",
  "url": "https://commons.wikimedia.org/wiki/Special:FilePath/LK-3_lunar_lander_engineering_test_unit.jpg",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q1132941",
    "https://en.wikipedia.org/wiki/LK_(spacecraft)"
  ],
  "additionalType": "lunar lander"
}

## References

1. Freebase Data Dumps. 2013