SSME
Proper noun
Meaning
SSME
(US, space science, aviation) Initialism of Space Shuttle Main Engine.
Anagrams
Examples
This allowed it to achieve a mass fraction of about 0.74, comparing with 0.86 for the SSME, one of the best conventional engines.
SSME upgrades were denoted as "block numbers", such as block I, block II, and block IIA.
The three second delay after confirmation of SSME operation was to allow the stack to return to nearly vertical.