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2. Stall (fluid dynamics) - Wikipedia

   en.wikipedia.org/wiki/Stall_(fluid_dynamics)

   An angle-of-attack indicator for light aircraft, the "AlphaSystemsAOA" and a nearly identical "lift reserve indicator", are both pressure-differential instruments that display margin above stall and/or angle of attack on an instantaneous, continuous readout. The General Technics CYA-100 displays true angle of attack via a magnetically coupled vane.

3. Aircraft engine controls - Wikipedia

   en.wikipedia.org/wiki/Aircraft_engine_controls

   Fuel pressure gauge - Indicates the supply pressure of fuel to the carburetor (or in the case of a fuel-injected engine, to the fuel controller.) Fuel boost pump switch - Controls the operation of the auxiliary electric fuel pump to provide fuel to the engine before it starts or in case of failure of the engine-powered fuel pump.

4. Flight control surfaces - Wikipedia

   en.wikipedia.org/wiki/Flight_control_surfaces

   Continued application of rudder sustains rolling tendency because the aircraft flying at an angle to the airflow - skidding towards the forward wing. When applying right rudder in an aircraft with dihedral the left hand wing will have increased angle of attack and the right hand wing will have decreased angle of attack which will result in a ...

5. Compressor stall - Wikipedia

   en.wikipedia.org/wiki/Compressor_stall

   Axi-symmetric stall, more commonly known as compressor surge; or pressure surge, is a complete breakdown in compression resulting in a reversal of flow and the violent expulsion of previously compressed air out through the engine intake, due to the compressor's inability to continue working against the already-compressed air behind it. The ...

6. Damper (flow) - Wikipedia

   en.wikipedia.org/wiki/Damper_(flow)

   These dampers also may allow adjustment of the "closed" position so that they only obstruct, for example, 75% of the air flow when closed. For vacuum-operated or pneumatically operated zone dampers, the thermostat usually switches the pressure or vacuum on or off, causing a spring-loaded rubber diaphragm to move and actuate the damper.

7. Spacers and standoffs - Wikipedia

   en.wikipedia.org/wiki/Spacers_and_standoffs

   Spacers can vary in size from microns to centimeters. They can be made of metal, plastic, glass, and other materials. Shapes include flat sheet, cylindrical and spherical. Two sizes of metal standoffs and one plastic standoff. The background depicts a standoff in use, holding a circuit board above a metal case.

8. Stabilizer (aeronautics) - Wikipedia

   en.wikipedia.org/wiki/Stabilizer_(aeronautics)

   A Boeing 737 uses an adjustable stabilizer, moved by a jackscrew, to provide the required pitch trim forces. Generic stabilizer illustrated. A horizontal stabilizer is used to maintain the aircraft in longitudinal balance, or trim: [3] it exerts a vertical force at a distance so the summation of pitch moments about the center of gravity is zero. [4]

9. Sail switch - Wikipedia

   en.wikipedia.org/wiki/Sail_switch

   A sail switch, vane switch or flow switch is a mechanical switch that is actuated on or off in response to the flow or non-flow of a fluid such as air or water. [1] A sail switch typically operates through the use of a paddle or a diaphragm which gets displaced due to the force of fluid or air moving past it.