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21 Cards in this Set
- Front
- Back
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What instrument measures the weight of air? |
Mercurial barometer |
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What is the standard atmospheric pressure at sea level measured in inches of mercury? |
29.92 inches |
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What is the standard atmospheric pressure at sea level measured in psi? |
14.7 psi |
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What are two temperature scales that are commonly used? |
Fahrenheit and Celsius |
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What is the term for the curve of the surface of an airfoil from the leading edge to the trailing edge? |
Camber |
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If two aircraft are flying with the same horsepower but at different altitudes, why does the aircraft flying at higher altitude fly faster than the aircraft flying at a lower altitude? |
Air is less dense the higher the altitude, well the air is more dense the lower the altitude |
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What aerodynamic forces affect aircraft in flight? |
Weight, lift, thrust, and drag |
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How does drag act in relation to relative wind? |
It always act parallel to the relative wind, which is the direction of the airflow with respect to the airflow |
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What is AOA? |
Angle of attack |
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Angle of attack is... |
The angle between the airfoils (wing) mean cord line and the Aircrafts flight path |
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How are airframe components joined? |
Rivets, bolts, screws, welds, or adhesives |
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What are the five stresses to which airframes are subjected? |
Tension, compression, torsion, shear, and bending |
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Which fuselage design does not use formers, frame assemblies, or bulkheads to give shape to the fuselage? |
True monocoque construction |
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What internal wing components serve as an attachment point for the skin? |
Ribs |
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What type of material is usually used for construction of flight control surfaces? |
Aluminum alloy |
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What is used to round out the angle formed between the fix tail surfaces and the fuselage? |
A fairing rounds out the angle formed between the fix tail surfaces and the fuselage |
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What structural unit provides a smooth airflow and into the engine Inlet? |
The engine nacelle |
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What component controls airflow around the weapons to reduce turbulence in the bay on some bomber aircraft? |
Spoilers |
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How do doors differ from panels? |
For prime difference between panels and doors is the doors are hinged |
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Most transparent structures on an aircraft, such as canopies, windshields, and windows, are made of what two materials? |
Acrylics and polycarbonate's |
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How do paint removers and stripping compounds affect the plastic facings of a radome? |
May have an adverse affects on its electrical properties or strength |
