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How Things Work: The Meatball

机译：运作方式：肉丸

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摘要

To imagine landing on an aircraft carrier, picture falling 70 stories toward the ocean each minute with nothing but a glorified traffic light to tell you if you're on track to snag an arresting wire, or whether you're about to crumple yourself against the carrier's ramp. Naval aviators know that traffic light as the Improved Fresnel Lens Optical Landing System. A pilot uses IFLOLS to discern his glide slope— the angle at which aircraft descend and land—by tracking the up-and-down motion of a "meatball," a bright amber light. The more closely aligned the meatball is with a horizontal row of green "datum" lights, the closer an aircraft is to its prescribed glide slope. (Coming in at too shallow an angle risks clipping the deck's edge. Landing too steeply busts landing gear.)
机译：想象一下降落在航空母舰上，想象一下每分钟向海洋坠落70层的故事，只有一个赞美的交通信号灯告诉您，如果您正准备抓住一根固定电线，或者是否要使自己屈服于承运人的坡道。海军飞行员将交通信号灯称为改进的菲涅尔透镜光学着陆系统。飞行员使用IFLOLS通过跟踪“肉球”（明亮的琥珀色光）的上下运动来识别滑行坡度（飞机下降和降落的角度）。肉丸与水平的绿色“基准”灯行越紧密对齐，飞机就越接近其规定的滑行坡度。 （以太浅的角度进来可能会夹伤甲板的边缘。过高的降落会破坏起落架。）

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