- Industria: 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 steel cable used in aircraft control systems. Preformed cable is made up of seven bundles (strands) of wires wound together to form the complete cable. Each strand is formed into a spiral (preformed) before the cable is wound. Because each strand is preformed, the cable does not spread out when it is cut.
Industry:Aviation
A type of stitch used to attach fabric to an aircraft structure in which the rib-stitching cord is wrapped around the rib two times to form a double loop before the knot is tied.
Industry:Aviation
A type of stitch used to prevent an entire hand-sewed seam loosening if the thread should break at any point. When making a sewed-in patch to aircraft fabric, the patch is sewed in using a baseball stitch. At every eight to ten stitches, the seam is locked with a modified seine knot.
Industry:Aviation
A type of stress that tries to squeeze the ends of an object closer together. A compression stress is also called a compressive stress.
Industry:Aviation
A type of structural failure caused by the application of too much compressive stress. Compression failure causes the material to buckle or collapse.
Industry:Aviation
A type of structural truss in which the main lengthwise members are separated by rigid diagonal members that carry both tensile and compressive loads. Most welded-steel truss fuselages are Warren truss structures.
Industry:Aviation
A type of structure made up of longitudinal beams and cross braces. Compression loads between the main beams are carried by rigid cross braces called compression struts. Tension loads are carried by stays, or wires, that go from one main beam to the other and cross between the compression struts.
Industry:Aviation
A type of stud used to replace a stud that has stripped the threads in a cast housing. A stud is a type of threaded fastener used to fasten a component to a casting; for example, to fasten the cylinders of an aircraft engine to the crankcase. One end of the stud has coarse threads that screw into the soft metal of the casting. The other end has fine threads to accept a nut.
If the threads in the soft casting are stripped, the threads can be drilled out and tapped for a larger stud, and a stepped stud can be used. The coarse threads on the stepped stud are usually one bolt size larger than the fine threads.
Industry:Aviation
A type of support that allows an object, such as a gyroscope, to remain in an upright condition when its base is tilted. Gyroscopes used in certain aircraft flight instruments are mounted in gimbals. Some in single gimbals, and others in double gimbals. The gyro in a turn and slip indicator is mounted in a single gimbal, and it senses rotation only about the vertical axis of the aircraft. The gyro in an attitude gyro instrument is mounted in a double gimbal, and it senses rotation about both the lateral and the longitudinal axes.
Industry:Aviation
