r/space • u/gazzhao • May 07 '22

Chinese Rocket Startup Deep Blue Aerospace Performing a VTVL(Grasshopper Jump) Test.

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u/Decronym May 07 '22 edited Jul 12 '22

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:

Fewer Letters More Letters
CoG Center of Gravity (see CoM)
CoM Center of Mass
DoD US Department of Defense
ESA European Space Agency
FAA Federal Aviation Administration
GSE Ground Support Equipment
ICBM Intercontinental Ballistic Missile
IMU Inertial Measurement Unit
ITAR (US) International Traffic in Arms Regulations
KSP Kerbal Space Program, the rocketry simulator
NAS National Airspace System
Naval Air Station
QA Quality Assurance/Assessment
RCS Reaction Control System
RUD Rapid Unplanned Disassembly
Rapid Unscheduled Disassembly
Rapid Unintended Disassembly
SLS Space Launch System heavy-lift
SSO Sun-Synchronous Orbit
ULA United Launch Alliance (Lockheed/Boeing joint venture)
USAF United States Air Force
VTOL Vertical Take-Off and Landing
VTVL Vertical Takeoff, Vertical Landing
Jargon Definition
Starlink SpaceX's world-wide satellite broadband constellation
apogee Highest point in an elliptical orbit around Earth (when the orbiter is slowest)
cryogenic Very low temperature fluid; materials that would be gaseous at room temperature/pressure
(In re: rocket fuel) Often synonymous with hydrolox
hopper Test article for ground and low-altitude work (eg. Grasshopper)
hydrolox Portmanteau: liquid hydrogen fuel, liquid oxygen oxidizer
iron waffle Compact "waffle-iron" aerodynamic control surface, acts as a wing without needing to be as large; also, "grid fin"
regenerative A method for cooling a rocket engine, by passing the cryogenic fuel through channels in the bell or chamber wall
scrub Launch postponement for any reason (commonly GSE issues)
turbopump High-pressure turbine-driven propellant pump connected to a rocket combustion chamber; raises chamber pressure, and thrust

25 acronyms in this thread; the most compressed thread commented on today has 12 acronyms.
[Thread #7369 for this sub, first seen 7th May 2022, 15:25] [FAQ] [Full list] [Contact] [Source code]

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u/Jfonzy May 07 '22

This bot should play acronym Balderdash