Airbus

What is OPP on Airbus A320? (Opposite)

What is RLSK on Airbus A320? (Right Line Select Key)

What is ESS on Airbus A320? (Essential)

What is EMER GEN on Airbus A320? (Emergency Generator)

What is OVSPD on Airbus A320? (Overspeed)

What is MAX END on Airbus A320? (Maximum Endurance)

What is BNR on Airbus A320? (Binary)

What is MSU on Airbus A320? (Mode Selector Unit)

What is EEC on Airbus A320? (Electronic Engine Computer)