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EN ATPL Principles of Flight Questions in English
Practise Principles of Flight
In a swept-back wing aeroplane that exhibits tip-stall pitch-up, this effect is mainly caused by:
In a linear incompressible model of a swept-wing aeroplane at unchanged dynamic pressure, lift coefficient and configuration, ignore Mach effects and assume that the aerodynamic coefficients remain unchanged. As altitude and TAS increase, static lateral stability (1) and natural aerodynamic roll/yaw damping (2) will:
A four-engine jet has identical, symmetrically placed wing-mounted engines producing equal thrust. During the take-off roll, a strong crosswind from the left produces a left-yawing weathercock moment. Considering this moment and the yawing moment from asymmetric thrust, which single engine failure above V1 gives the greatest combined left-yawing tendency?
Differential aileron deflection:
If the elevator trim tab is deflected up, the cockpit trim indicator presents:
Which statement correctly describes a mass-distribution measure used in the design against wing bending-torsion flutter?
Load factor is:
For a light aeroplane certificated under the legacy utility-category requirements, what is the specified positive manoeuvring limit load factor in the clean configuration?
Under CS 25.345(a)(1), which positive manoeuvring limit load factor is used for the high-lift-device design condition at the relevant design flap speed and flap position?
The lift coefficient (CL) of an aeroplane in steady horizontal flight is 0.42. An increase in angle of attack of 1 degree increases CL by 0.1. A vertical up gust instantly changes the angle of attack by 3 degrees. The load factor will be:
