NUTI => NASCOM User Traffic Interface
NASCOM => NASA Communications
NASA => National Aeronautics and Space Administration
Found by parsing this list of over 14,000 NASA acronyms
It also contains a vast number of second order acronyms, but the example above is the only third order acronym I could find through initial analysis.
But I still don't completely understand what is or isn't ullage in rocket science context.
Ullage technically is the space in a tank of liquid which is gas-filled instead of liquid-filled.
For a propellant tank, it's important that the ullage volume be kept away from the inlet that leads to the engines, because you want the liquid going into the engines. ...
While not exactly space exploration there is at least one fourth order acronym for NASA earth observation systems (mostly earth sensing satellites).
EPR - EED2 Program Roadmap
EED - EOSDIS Evolution and Development
EOSDIS - Earth Observation System(EOS) Data and Information System
EOS - Earth Observing System
NASA - EOSDIS Acronym List
The terminology is even less rigorous than that! Skirt, nozzle, and bell can informally refer to the same thing.
Bell seems to be shorthand for bell nozzle, a common shape for a nozzle.
One chapter in a book (preview) confusingly does not distinguish between skirt, skirts, and skirt structures. "Skirts" suggests Victorian hoop skirts, which indeed look ...
It is a “Fast Mission” opportunity. These are missions that address an opportunity in the near future that would possibly be missed with the normal mission development timeline.
Historically, ESA missions are classified as Large (L), Medium (M) or Small (S). The distinction is not on size of the payload, but on the technology development required for the ...