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Unformatted text preview: Definitions Chapter 4 True airspeed: Velocity of the airplane relative to the atmosphere, V . Equivalent airspeed: A velocity proportional to the square root of the dynamic pressure, V e = V . Indicated airspeed: Equivalent airspeed corrupted by instrument and position error. Stall speed: The lowest speed that an airplane can maintain steady level flight, V stall . Flight envelope: The region of the velocity-altitude plane enclosed by T- D = 0, the stall speed and whatever other speed limits are imposed on the airplane. Ceiling: Highest altitude that steady level flight can be maintained for a given weight and power setting. Range: Distance traveled by an airplane during constant altitude cruise. Endurance: Time elapsed during constant altitude cruise. Constant altitude cruise: Cruise at constant altitude. Distance factor: Instantaneous increase in distance per unit decrease in weight,- dx/dW . Time factor: Instantaneous increase in time per unit decrease in weight,- dt/dW . Distance: The horizontal distance traveled along a trajectory, x f- x . Time: The time elapsed along a trajectory, t f- t . Point performance: Performance at a point on a trajectory. Path performance: Performance along a finite portion of a trajectory. Climb angle: Flight path inclination at a point on a climb trajectory. Rate of climb: h at a point on a climb trajectory....
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This note was uploaded on 09/18/2011 for the course ASE 367K taught by Professor Staff during the Spring '10 term at University of Texas at Austin.
- Spring '10