20 Terms
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Airframe
Airframe construction features, assembly and rigging, fabric covering, structural repairs, and aircraft welding.
Industry: Aviation
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Airframe
double-acting hand pump
Aviation; Aircraft maintenance
A hand-operated fluid pump that moves fluid during both strokes of the pump handle.
profile drag
Aviation; Aircraft maintenance
Aerodynamic drag produced by skin friction. Profile drag is a form of parasite drag.
straight polarity welding
Aviation; Aircraft maintenance
DC-electric arc welding in which the electrode is negative with respect to the work.
reverse polarity welding
Aviation; Aircraft maintenance
DC-electric arc welding in which the electrode is positive with respect to the work.
superheat
Aviation; Aircraft maintenance
Heat energy that is added to a refrigerant after it changes from a liquid to a vapor.
pinking shears
Aviation; Aircraft maintenance
Shears used to cut aircraft fabric with a series of small notches along the cut edge.
absolute zero
Aviation; Aircraft maintenance
The point at which all molecular motion ceases. Absolute zero is –460 °F and –273 °C.
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