- المجال: 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 layer of ionized particles that surrounds the earth at a height of about 55 to 85 miles above the surface. The heaviside layer is also called the Kennelly heaviside layer and the E-region of the atmosphere. The heaviside layer reflects relatively long, low-frequency radio waves.
Industry:Aviation
A layer of porous fabric used in the lay-up of a composite material that vents the excess resin and prevents the bagging material from sticking to the part. The peel ply is removed after the resin has cured.
Industry:Aviation
A layer of semiconductor material whose crystalline orientation is the same as that of the substrate on which it is grown.
Industry:Aviation
A layer of thin plastic material that is placed between a composite lay-up and the heating blanket. It prevents the blanket sticking to the fabric.
Industry:Aviation
A layout and measuring tool which has a steel scale fitted into the head of a square. One face of the square head forms a 90° angle, and the other face forms a 45° angle to the scale.
Industry:Aviation
A lead-acid storage battery that has been fully charged by the manufacturer. Before the battery is shipped, all the electrolyte is drained out of it, and the cells are all sealed.
Before the battery is placed in service, it is filled with electrolyte having the proper specific gravity, and the battery is given a freshening charge (a charge that brings its voltage up to the proper value).
Industry:Aviation
A legal document giving a person the exclusive right to own a particular device. When a person invents something, the rights of ownership are protected by patenting the device. A search is made by the patent office to be sure no one has patented the same device at an earlier time. If no earlier patent is recorded, the person applying for the patent is issued a patent certificate.
Industry:Aviation
A lengthwise groove cut in the outside of a shaft. A similar keyway cut into the side of the hole in the hub that fits on the shaft is aligned with the keyway on the shaft, and a rectangular piece of metal called a key locks the keyways together, preventing the hub turning on the shaft.
Industry:Aviation
A level maintained during a significant portion of a flight.
Industry:Aviation
A lever in which the force is applied between the fulcrum and the weight. The force needed to move the weight is greater than the weight, but the distance moved by the weight is greater than that moved by the force.
Industry:Aviation
