Designed by Grumman\'s brilliant Tom Kelly, the Apollo Lunar Excursion Module (or "LEM" for short) was a triumph of purpose-built engineering.
The final design, designated the Lunar Module or "LM", boasted tiny windows instead of large portholes, four legs instead of five and most famously had no seats - instead relying on the astronauts\' legs to cu.
In the six years 1962-1968 between drawing board and first flight, a myriad of challenges were overcome related to weight, reliability and safety.
Designed by Grumman\'s brilliant Tom Kelly, the Apollo Lunar Excursion Module (or "LEM" for short) was a triumph of purpose-built engineering