Questões ATP_pag127

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Fowler flaps slide out and downward from the trailing edge of the wing. When lowered,
they increase the wing area as well as the wing camber. The Fowler flap is
characterized by the largest increase in CL(MAX) with the least changes in drag. The
Fowler flap also creates the greatest change in pitching moment. Split flaps consist of
a hinged plate that deflects downward from the lower surface of the wing. The split flap
produces the least change in the pitching moments of a wing when it is lowered. The
deflection of a flap causes large nose-down moments which create important twisting
loads on the structure and pitching moments that must be controlled with the
horizontal tail. Unfortunately, the flap types producing the greatest increases in
CL(MAX) usually cause the greatest twisting moments. The Fowler flap causes the
greatest change in twisting moment while the split flap causes the least.
433. For a given angle of bank, the load factor imposed on both the aircraft and pilot in a
coordinated constant-altitude turn
 A. increases with an increase in airspeed.
 B. remains constant regardless of airspeed changes.
 C. decreases with an increase in airspeed.
For any given angle of bank, the load factor remains constant.
434. What adverse flight characteristics could result from operating an aircraft with the
center of gravity (CG) beyond the published forward limitations?
 A. The flight control forces may become very light.
 B. It could be difficult or impossible to flare for landing.
 C. It could be difficult or impossible to recover from a stall.
In extreme cases, a CG location that is beyond the forward limit may result in nose
heaviness, making it difficult or impossible to flare for landing.
435. Which engine is the 'critical' engine of a twin-engine airplane?
 A. The one with the center of thrust closest to the centerline of the fuselage.
 B. The one designated by the manufacturer which develops most usable thrust.
 C. The one with the center of thrust farthest from the centerline of the fuselage.
The critical engine is defined as the engine whose failure would most adversely affect
performance or handling. Because of 'P-factor,' most propeller-driven airplanes do not
develop symmetrical thrust at high angles of attack. If the engine with the thrust line
closest to the airplane centerline fails, the resulting yawing moment will be greater
than if the other engine had failed.
436. What is the reason for variations in geometric pitch along a propeller or rotor blade?
 A. It permits a relatively constant angle of attack along its length when in cruising flight.
 B.
It prevents the portion of the blade near the hub or root from stalling during cruising
flight.