题目内容

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

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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

词汇与结构Moreover, it tends to prevent ground looping by providing more _____ stability during ground operation since the airplane’s center of gravity is forward of the main wheels.

A. directional
B. vertical
C. longitudinal
D. lateral

词汇与结构However, airplanes with a castering nosewheel may require you to _____the use of the rudder pedals with independent use of the brakes.

A. connect
B. link
C. combine
D. conclude

词汇与结构The main _____ with the tailwheel landing gear is that the center of gravity is behind the main gear. This makes directional control more difficult while on the ground.

A. advantage
B. drawback
C. holdback
D. merit