题目内容

词汇与结构In case of landing with a retracted nose-wheel, the pilot should hold the nose off the ground until almost ________ has been applied.

A. full up-elevator
B. half up-elevator
C. half down-elevator
D. full down-elevator

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词汇与结构The pilot should then release ________ pressure in such a manner that the nose settles slowly to the surface.

A. front
B. middle
C. whole
D. back

词汇与结构If the landing must be made with only the nose gear extended, the initial contact should be made on the aft fuselage structure with a nose-high attitude. This procedure will help prevent ________ problems.

A. rudder
B. column
C. wheel
D. thrust

词汇与结构Landing gear employing a rear-mounted wheel is called a _____ landing gear.

A. tricycle
B. conventional
C. main wheel
D. nosewheel

词汇与结构52. Tricycle landing gear permits better forward _____ for the pilot during takeoff, landing, and taxiing.

A. reliability
B. controllability
C. maneuverability
D. visibility