- 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 precision measuring tool used to measure the inside diameter of a hole. A telescoping gage consists of a hardened steel pin that slides, or telescopes, into a hardened steel sleeve. The pin is spring-loaded outward, and a T-handle, extending out from the center of the pin and sleeve, can be twisted to lock the pin in the sleeve.
A telescoping gage with the correct range of measurement is put in the hole whose inside diameter is to be measured, and the lock is released. The spring pushes the pin and the sleeve against the sides of the hole. The gage is held level across the hole, and the lock is tightened. The gage is then removed from the hole, and its length is measured with a micrometer caliper.
Industry:Aviation
A precision orifice used to restrict the flow of a fluid. The diameter and length of the orifice, and the approach and departure angles to and from the orifice, all determine the amount of fluid that can flow under a given pressure drop across the orifice.
Industry:Aviation
A precision protractor that can be read to one tenth of a degree. Universal propeller protractors are used to check and set the pitch of propeller blades and to measure the amount of movement of aircraft control surfaces.
Industry:Aviation
A precision resistor in series with a voltmeter mechanism used to extend the range of the basic meter or to allow a single meter to measure several ranges of voltage.
Industry:Aviation
A precision resistor installed in parallel with a voltage measuring instrument to measure the amount of current flowing in a circuit. Load current flows through the shunt and produces a voltage drop proportional to the amount of current flowing through it.
A millivoltmeter whose dial is calibrated in amps is used to read the voltage drop across the shunt. The standard shunt used with aircraft ammeters produces a voltage drop of 50 millivolts when the shunt’s rated current flows through it.
Industry:Aviation
A precision-ground block of hardened and polished steel used as the standard for precise linear measurements in most manufacturing processes, and to check the accuracy of micrometer calipers. The dimensional accuracy of a gage block is normally measured in millionths of an inch.
Industry:Aviation
A predetermined maneuver which keeps aircraft within a specified airspace while awaiting further clearance from air traffic control.
“Hold for release” (air traffic control). A phrase used by ATC to delay an aircraft for traffic management reasons; i.e., weather, traffic volume, etc. Hold for release instructions (including departure delay information) are used to inform a pilot or a controller (either directly or through an authorized relay) that an IFR departure clearance is not valid until a release time or additional instructions have been received.
Industry:Aviation
A prefix meaning partially or part (usually half) of something. A semicircle is half of a circle, and a semiannual event is something that takes place every half year (twice in a year).
Industry:Aviation
A preplanned delay at points along the route of a flight which requires special flight plan filing and handling techniques.
Filed enroute delays may be terminal area delays, special use airspace delays, or aerial refueling delays.
Industry:Aviation
A preplanned instrument flight rule (IFR) air traffic control arrival procedure published for pilot use in graphic and/or textual form. STARs provide transition from the en route structure to an outer fix or an instrument approach fix/arrival waypoint in the terminal area.
Industry:Aviation
