- 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 ...
Any or all forms of water particles, whether liquid or solid, that fall from the atmosphere and reach the surface. Precipitation is a major class of hydrometeor and is distinguished from cloud and virga in that it reaches the surface.
Industry:Aviation
Any process which reduces power density in radar signals.
Precipitation attenuation reduces the power density because of absorption or reflection of energy by precipitation.
Range attenuation is the reduction in radar power density because of distance from the antenna.
Range attenuation occurs in the outgoing beam at a rate that is proportional to 1/range2. The return signal is also attenuated at the same rate.
Industry:Aviation
Any runway or runways currently being used for takeoff or landing. When multiple runways are used, they are all considered to be active runways.
Industry:Aviation
Any stationary wave disturbance caused by a barrier in a fluid flow. In the atmosphere, when sufficient moisture is present, lee waves are evidenced by lenticular clouds on the lee side of mountain barriers. Lee waves are also called mountain waves or standing waves.
Industry:Aviation
Any surface designed to obtain a useful reaction, or lift, from air passing over it. Airplane wings, propeller blades, and helicopter rotors are examples of airfoils.
Industry:Aviation
Any surface on an object that cannot be seen in the view depicted by a drawing. A hidden surface is represented in outline form by a hidden line, a series of medium-weight dashes.
Industry:Aviation
Any time during which an aircraft is out of commission and not able to be operated.
Industry:Aviation
Any two angles whose sum is 180°. An angle of 30° and one of 150° are supplementary angles; their sum is 180°.
Industry:Aviation
Any type of inspection that does not damage the system or component being inspected. X-ray is a system of nondestructive inspection that allows the inside of a device to be inspected without its having to be opened or in any way damaged.
Industry:Aviation
Any unwanted electrical interference. Noise may come from static electricity or from signals fed into the circuit by inductive or capacitive coupling from other circuits.
Industry:Aviation
