- 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 ...
Special pins installed in holes in an aircraft control system to hold the components in a specified position when the controls are being rigged and the control cable tension adjusted.
Industry:Aviation
Specific characteristics of weather which pertain to flight or to the operation of aircraft.
Industry:Aviation
Specific information related to the intended flight of an aircraft. A flight plan is filed with an FAA flight service station or an air traffic control facility.
Industry:Aviation
Specifications established by the National Aircraft Standards Committee for the design and construction of components. Parts conforming to these standards are identified with a number preceded by the initials NAS.
Industry:Aviation
Specifications for technical equipment that have been established by a joint board of the United States Army and Navy. These specifications describe the equipment in detail. They are usable for civilian equipment as well as for equipment built specifically for the military.
Industry:Aviation
Specified airspace within which an air traffic control center (ARTCC) provides air traffic control and advisory service.
Industry:Aviation
Speed decrease calculations made to determine an accurate vertex time of arrival (VTA). These calculations start at the transition point and use arrival speed segments to the vertex.
Industry:Aviation
Speed sensors used in many types of governors and speed-control devices. A typical flyweight is an L-shaped arm, pivoted at the center, and mounted on a spinning plate. There are usually two or three flyweights mounted on the same plate. A control rod is held against the flyweight by a control, or speeder, spring.
When the plate is not spinning, the speeder spring holds the control rod down, and the toes of the flyweights rest against the plate. This is called the underspeed condition.
When the plate is spinning and the pressure of the speeder spring is weak, centrifugal force causes the flyweights to sling out and lift the control rod. This is called the overspeed condition.
When the centrifugal force on the flyweights exactly balances the compressive force of the speeder spring, the flyweights stand straight up, and the control rod is in a middle position. This is called the onspeed condition.
Industry:Aviation
Spool-shaped, sheet-metal plugs installed inside hollow crankshaft throws. Sludge carried in the lubricating oil passing through the crankshaft is thrown by centrifugal force to the outside of the chamber formed by the sludge plugs, where it is trapped and held until the engine is disassembled at overhaul.
Industry:Aviation
Spring-loaded doors in the inlet duct of some turbojet or turbofan engine installations that are opened by an air pressure differential when the inlet air pressure becomes a certain amount lower than that of the ambient air.
Air flowing through the doors adds to the normal inlet air passing through the engine and helps prevent compressor stall.
Industry:Aviation
