- 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 type of switch that allows an electrical light to be turned on or off at either of two locations. Three-way light switches are used at the top and the bottom of stairs and at either end of a long hall.
Industry:Aviation
A type of synthetic resin used as the base for certain enamels and primers.
Industry:Aviation
A type of synthetic rubber made from petroleum. Neoprene is superior to natural rubber and other synthetic rubbers because of its resistance to damage from petroleum products.
Industry:Aviation
A type of tail configuration used on some models of the Beech Bonanza.
A butterfly, or V-tail, has two fixed surfaces and two movable surfaces, which produce aerodynamic forces to rotate the aircraft about its vertical and lateral axes in the same way as the three fixed and three movable surfaces used in the conventional inverted T-tail.
Industry:Aviation
A type of test given to such mechanisms as airplane structures. Hydraulic cylinders or sandbags apply forces to simulate loads that could possibly be encountered in flight, and the amount the structure deflects is measured. Some static testing is carried to destruction—the structure is loaded until something breaks. Testing to destruction identifies the weakest point in the structure.
Industry:Aviation
A type of test required for cylinders used to carry compressed gases. The cylinder is filled with water under a pressure higher than that of the gas it is to carry, and this pressure is held for a specified length of time. Cylinders are hydrostatically tested rather than being tested with compressed air because, if the cylinder should fail, the incompressible water will not cause an explosion, as would occur if a cylinder filled with compressed air should fail.
When oxygen cylinders are hydrostatically tested for installation in an aircraft, they are filled with water and pressurized to 5/3 of their working pressure. Standard-weight cylinders (DOT 3AA) must be hydrostatically tested every five years, and lightweight cylinders (DOT 3HT) must be tested every three years.
Industry:Aviation
A type of test used to check for leaks in almost any kind of system in which a gas is held under pressure. A soap solution is brushed over all areas of a pressurized system where a leak could occur, and if there is a leak, the escaping gas will form bubbles in the soap film.
Industry:Aviation
A type of tester used to determine the condition of the fabric installed on an aircraft. A specially shaped, spring-loaded, sharp-pointed plunger is pressed into the fabric until a shoulder around the point contacts the fabric. The amount of force required to press the shoulder to the fabric is measured on a colored scale in the handle of the tester. Weak fabric requires very little force to press the shoulder against the fabric, and it shows up as a red band. Airworthy fabric requires enough force to compress the spring that the indicator moves up to one of the green bands.
A Seyboth test does not indicate the strength of the fabric in pounds per inch, but it is sufficiently accurate to distinguish between fabric that is either definitely good or definitely bad.
Industry:Aviation
A type of thread-cutting tap used to start the threads in a hole. The first six or seven threads on the end of the tap are ground in the form of a taper so the tap can easily enter the hole.
Industry:Aviation
A type of thrust reverser that uses a pair of clamshell doors set into the tail cone of the engine to deflect the exhaust gases forward when the pilot wants to slow the aircraft.
Industry:Aviation
