N1-LK-LOK

The N1-LK-LOK or N1-L3 (original) was a Soviet rocket that competed with the Saturn V during the Space Race in the late 1960s. It was cancelled due to lack of funds and constant failures, and only flew four times. 

In-game, it is used in Mission 21 to go to and land on RED.

The N1-LOK-LK is assembled as follows:

1. N1 Block A
2. N1 Block B
3. N1 Block V
4. LK Lander Legs
5. LK Lander Core
6. N1 Payload Fairing
7. LOK Service Module
8. LOK Crew Capsule
9. LOK Docking Module
10. LOK Fairing
11. N1 Escape Tower

Trivia

• N1 refers to the first 3 stages (Block A, B, V) for Low-Earth Parking Orbit, and L3 refers to the 2 additional stages inside the large fairing (Block G and D) for translunar injection and lunar orbit insertion, thus the whole stack was called N1-L3 or N1/L3. A standalone N1 rocket (if it was used) would only have the first 3 stages.
• Each of the four attempts to launch an N1 failed. The first was a result of the computer failure and caused problems with the rest of the stage which exploded. During the second launch attempt the N1 rocket fell back onto its launch pad shortly after liftoff and exploded due to an engine failure which caused a cascade of failure and the computer shut down all engines, resulting in one of the largest artificial non-nuclear explosions in human history. The rocket broke up mid-air during the third and fourth attempts due to computer control issues and the rocket's structural issues respectively.
• The reason the first three stages do not appear in English alphabetical order is because the alphabet is based on the Russian alphabet, which goes by equivalents of A, B, V, G, D, and so on.
• Although the rocket did not make it past Earth's atmosphere, its first stage was the most powerful ever built, consisting of 30 engines, generating 45,400 kN compared to the 33,000 kN of the Saturn V and 39,000 kN of the SLS Block 1 in real life.
• It, along with the Saturn V and the SLS, is capable of lifting the heaviest modules in the game.  
• On the real N1 rocket, there was a fourth stage known as Block G, which would be used to travel to the Moon, and a fifth stage called Block D which would be used to slow down the assembly in Moon's orbit before circularizing and landing; both of which would be placed inside a large fairing which was not added to the game. The real-life LOK (Soyuz 7K-LOK) was also slightly longer and larger, and didn't have solar panels like in the game.

  

  The real life LOK

The N1 variants

An N1 mockup. Note the large white fairing on top which was used to contain the Block G and Block D