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Related Flashcards
Cards In This Set
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Bernoulli's Principle
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Within a horizontal flow of fluid, points of faster fluid speed will experience less pressure than points of slower fluid speed.
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How does Bernoulli's Principle apply to aircraft?
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The curvature of an airfoil (wing or rotor blade) causes air to flow faster over the top (creating a low pressure area) and slower underneath (causing a high pressure area).
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Manufacturer's Empty Weight (MEW)
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Total weight of the aircraft as it was built. Includes systems and components required for the aircraft to operate. Does NOT include: passengers, baggage, usable fuel/fluids, unusable fuel/fluids.
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Operating Empty Weight (OEW)
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MEW plus crew, fluids, unusable fuel, and equipment required for flight. Does NOT include: passengers, baggage, or usable fuel.
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All Up Weight (AUW) or Aircraft Gross Weight (AGW)
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Total weight of the aircraft at any given moment during flight. This weight decreases as fuel and fluids are consumed during the operation of flight.
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Maximum Landing Weight (MLW)
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Weight limit for landing.
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Maximum Zero Fuel Weight (MZFW)
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The permissible weight of an aircraft with its contents and includes unusable fuel. EXCLUDES usable fuel and any consumable fluids.
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Maximum Takeoff Weight (MTOW)
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Weight limit for takeoff. Calculated by totaling: OEW, cargo, passengers, baggage, and fuel requirements for taxi/flight/reserve.
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Maximum Ramp Weight (MRW)
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Weight limit for ground taxi or towing on the ground.
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Flight Envelope
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The limits of speed, altitude, and AOA required by any aircraft to maintain stable flight.
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Angle of Attack (AOA)
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The angle between the relative airflow against the airfoil and the Chord.
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Chord Line
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Imaginary reference line that extends from the leading edge to the trailing edge.
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Parasite Drag
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Low air pressure in the tires, skin friction, or anything else that increases the turbulence on the aircraft.
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Profile Drag
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Produced by the shape of the aircraft. Smaller, slimmer profile = less profile drag.
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Pressure Altimeter
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Set to 29.92 in of Hg (Standard Atmospheric Pressure at sea level). Following departure, the pilot must correct for the pressure altitude of the DESTINATION airfield.
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