- Industry: Aviation
- Number of terms: 16387
- Number of blossaries: 0
- Company Profile:
Aviation Supplies & Academics, Inc. (ASA) develops and markets aviation supplies, software, and books for pilots, flight instructors, flight engineers, airline professionals, air traffic controllers, flight attendants, aviation technicians and enthusiasts. Established in 1947, ASA also provides ...
A temperature inversion with its base at the surface. Surface inversions are often caused by the air near the surface being cooled by terrestrial radiation, especially at night.
Industry:Aviation
A temperature-sensing device used with a ratiometer-type thermometer. A length of small-diameter nickel wire is wound around an insulator and enclosed in a thin stainless steel tube. This bulb is surrounded by the medium whose temperature is to be measured so the nickel wire can reach the same temperature as the medium. The resistance of the wire changes with its temperature, and a sensitive resistance-measuring instrument measures the resistance of the wire and displays this resistance in terms of degrees of temperature.
Industry:Aviation
A temperature-sensing valve in an oil cooler that opens when the oil is cold and allows it to flow around the core of the cooler, between the core and the cooler jacket. When the oil is hot, the bypass valve closes and forces the oil to flow through the core of the cooler.
Industry:Aviation
A temperature-sensitive electrical switch. A thermostat is used with a combustion heater to control the temperature of the air inside the cabin of an aircraft. The thermostat contains an electrical switch that closes when the temperature drops to a preset value.
Current flowing through the closed switch opens the heater fuel valve, allowing the heater to begin heating the air. When the cabin air temperature rises to the upper value for which the thermostat is set, the switch opens, and the fuel valve shuts off the flow of fuel to the heater.
Industry:Aviation
A temporary increase in the speed of the wind. A gust lasts for a very short period of time, and it is usually followed by a wind whose speed is lower than normal.
Industry:Aviation
A term commonly used for a negative pressure, or a pressure below atmospheric pressure. The terms suction and vacuum are both used to mean a negative pressure.
Industry:Aviation
A term commonly used to mean relative movement between parts. There is said to be play in the controls of an aircraft if the control surfaces can be moved without the cockpit controls moving.
Industry:Aviation
A term for a dip stick, such as that used to measure the quantity of a liquid in a tank or a reservoir.
Industry:Aviation
A term for a magneto distributor rotor. The finger, or rotor, is the device inside a distributor that picks up the high voltage from the magneto coil and directs it to the terminal inside the distributor block to which the ignition lead for the correct spark plug is attached.
Industry:Aviation
