- Industry: Government
- Number of terms: 35337
- Number of blossaries: 0
- Company Profile:
A long-chord cowling used over a radial engine. The forward portion of this cowling has an aerodynamic shape that produces a forward pull, and the rear portion extends back to fair in with the fuselage. There is a narrow peripheral gap between the rear of the cowling and the fuselage for the cooling air to escape. Some NACA cowlings have controllable flaps over this opening to control the amount of cooling air that flows through the engine.
Industry:Aviation
A loop in a rigid fluid line used to prevent vibration from concentrating stresses that could cause the line to break.
Industry:Aviation
A low point in an aircraft engine in which lubricating oil collects and is stored or transferred to an external oil tank. A removable sump attached to the bottom of the crankcase of a reciprocating engine is often called an oil pan.
Industry:Aviation
A low point in an aircraft fuel tank in which water and other contaminants collect and are held until they can be drained out.
Industry:Aviation
A low-carbon iron alloy that contains some silicon It is used as the core for transformers, field frames for generators and alternators, and the magnetic circuit of magnetos.
Industry:Aviation
A low-resistance connection between two points in an electric circuit.
Industry:Aviation
A lubricant that reacts with iron to form iron chlorides, sulfides, or phosphides on the surface of a steel part. These compounds reduce wear and damage to surfaces in heavy rubbing contact. EP lubricants are specially suited for lubricating gear trains.
Industry:Aviation
A lubrication system in which the oil supply is carried within the engine itself. Return oil drains into the oil reservoir by gravity.
Industry:Aviation
A magnet produced by an electrical current flowing through a coil of wire. The coil is normally wound around a core of soft iron which has an extremely low retentivity, allowing it to lose its magnetism as soon as the current stops flowing.
Industry:Aviation
A maintenance procedure for a DC generator that restores residual magnetism to the field frame, A pulse of current from a battery is sent through the field coils in the direction in which current normally flows. The magnetic field produced by this current magnetizes the steel frame of the generator.
Industry:Aviation
