Early NASA spacesuits were given model numbers, as described in slide 3 of this NASA Powerpoint. The model numbers were assigned in the format
- the first letter (
P) describes the program (
- an optional second letter
Xdescribes an experimental model.
- the number (
#) after the dash describes the iteration of the development sequence, starting with
- the final letter (
M) describes the manufacturer.
Thus some notable suits were
- the Mercury suits were just called "Mark IV" and were numbered with the mission (e.g. Shepard was
Gemini suits, made by the David
Clark Company, were
Apollo suits, made by International
Latex Corp., were
The Extravehicular Mobility Unit has been used for spacewalks from the Space Shuttle and International Space Station. Does the EMU have model numbers? How are the model numbers formatted, and what are some notable models?