Special Features:

Shield, vapor cycle comp.

Properties:

An item designed to fit into and/or over various external openings in an aircraft, such as air scoops, exhaust outlets, and vents to prevent the entrance of foreign matter while the aircraft is on the ground. There is usually a warning streamer attached to indicate removal before flight. Excludes plug, protective, dust and moisture seal; and cap-plug, protective, dust and moisture seal. For fabric items, or the like, designed to envelope or spread over an opening, see cover, aircraft ground servicing.