21 Terms
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Control systems
Of or relating to systems used in the closed area of a spacecraft to permit life to be sustained, so that occupants are provided with a suitably controlled atmosphere in which to live and work.
Industry: Aerospace
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Control systems
secondary air
Aerospace; Control systems
Large surplus of air that cools the hot sections of a gas turbine engine to lower temperatures.
shaft horsepower (shp)
Aerospace; Control systems
Energy used to drive the compressor and accessories in a turbine engine.
acceleration lag
Aerospace; Control systems
In the turbine engine, delay between the time instant power is requested and when power is available. The time it takes the engine to accelerate and give the required power increase.
aerodynamic drag
Aerospace; Control systems
Force which thrust must overcome to move an aircraft forward. Design can lessen aerodynamic drag through streamlining. Drag increases with increased speed.
airbleed actuator
Aerospace; Control systems
Device that operates the interstage bleed system, to improve compressor acceleration characteristics by unloading small amounts of compressed air.
air density
Aerospace; Control systems
Total mass of air per given volume, the weight of a given volume of air. Air is denser at lower altitude, at lower temperature, and lower humidity.
