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Special Test Unit
in NASA
Star Tracker Unit
in NASA
Shuttle Test Unit
in NASA
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Similar to STU
A/L - Approach and Landing
AA - Astronomical Applications
AA - Adverse Action
AA - Antenna Assembly
AAA - Avionics Air Assembly
AAC - Aft Access Closure
AACB - Aeronautics and Astronautics Coordinating Board
View all in NASA