1) What are primary flight control surfaces and what are the secondary control surfaces? (5分） 2) What are their postions? 3) What are their functions?
举一反三
- The primary flight control system uses conventional control wheel, column and pedals linked mechanically to hydraulic power control units which command the primary flight control surfaces, ailerons, elevators, and _________.
- 词汇与结构 The aircraft take advantage of aerodynamic _________ to travel through the air by means of primary and secondary flight control surfaces which are operated by flight controls in the cockpit.
- What do the surfaces of the deserts look likeMany of them have surfaces of （）
- 词汇与结构 The roll control surfaces consist of hydraulically powered ailerons and flight spoilers which are controlled by _________ either control wheel.
- 简要回答下列问题：（注意用完整句子回答） What are the primary causes for loss of control?