Aviation General

What is ECU in Aviation? (Engine Control Unit (=Eec))

What is UAC in Aviation? (Upper Area Control)

What is PAR in Aviation? (Precision Approach Radar)

What is FEP in Aviation? (Final End Point)

What is CSDB in Aviation? (Collins Standard Digital Bus)

What is TBV in Aviation? (Transient Bleed Valve)

What is SAS in Aviation? (Stability Augmentation System)

What is TKE in Aviation? (Track-Angle Error)

What is HSL in Aviation? (Heading Select)