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Auxiliary Power and Thrust Unit
in NASA
Aerodynamic and Propulsion Test Unit
in NASA
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Similar to APTU
A/E - Architectural and Engineering
A/E - Activity Elements
A/F - Air-to-Fuel Ratio
A/FM - Air/Firing Mechanism
A/G - Air to Ground
A/L - AutoLand
A/L - AirLock
View all in NASA