Boeing 737

What is GS on Boeing 737? (Glide Slope)

What is PCU on Boeing 737? (Power Control Unit)

What is F/F on Boeing 737? (Fuel Flow)

What is TX on Boeing 737? (Torque Transmitter)

What is VGH on Boeing 737? (Velocity, Gravity, Height)

What is CAPT on Boeing 737? (Captain)

What is COR on Boeing 737? (Corrector)

What is IDENT on Boeing 737? (Identification – Transponder Function)

What is GCU on Boeing 737? (Generator Control Unit)