- Отрасли: 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 ...
The difference between the angles at which the valve seat and the valve face are ground. Normally the valve seats are ground with between 0.5° and 1° greater angle than the valve face. This allows the face to touch the seat with a line contact that provides the best sealing.
Industry:Aviation
The difference between the bore diameter of a reciprocating engine cylinder in the area of the head and in the center of the barrel.
Industry:Aviation
The difference between the highest and the lowest frequencies in a band of frequencies.
Industry:Aviation
The difference between the maximum allowable weight of the aircraft and its empty weight. The useful load of an aircraft includes the weight of the fuel and oil, the crew, the passengers, all of their baggage, and any cargo carried.
Industry:Aviation
The difference between the minimum and maximum thickness of material a special rivet can be used to fasten.
Industry:Aviation
The difference between the nominal dimension of a part and its upper or lower limit.
Industry:Aviation
The difference between the upward and downward travel of an aileron. An aileron moves a greater number of degrees upward than downward to counteract adverse yaw.
The downward-moving aileron produces both induced and parasite drag, but the upward-moving aileron produces only parasite drag. To prevent the combined drag causing the nose of the airplane to start to move toward the down aileron, the up aileron travels a greater distance, producing enough additional parasite drag to overcome the induced drag caused by the down aileron.
Industry:Aviation
The difference in the angles of incidence between the two wings of a biplane. If the upper wing has a greater angle of incidence than the lower wing, the decalage is positive. If the lower wing has the greater angle of incidence, the decalage is negative.
Industry:Aviation
The difference in the pressure inside the cabin of a pressurized aircraft and the pressure of the air outside of the cabin. The maximum cabin differential pressure that can be maintained is determined by the strength of the aircraft structure.
Industry:Aviation
