Aviation General

What is IGV in Aviation? (Inlet Guide Vanes)

What is CED in Aviation? (Cooling Effect Detector)

What is ACMS in Aviation? (Aircraft Condition Monitoring System)

What is VOR-D in Aviation? (Vor-Dme)

What is SMNS in Aviation? (Specialized Means Of Navigation)

What is PBD in Aviation? (Place/Bearing/Distance Waypoint)

What is EST in Aviation? (Estimated)

What is PFD in Aviation? (Primary Flight Display)

What is UNLK in Aviation? (Unlock)