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Thrust reversal, also called reverse thrust, is the temporary diversion of an aircraft engine's thrust for it to act against the forward travel of the aircraft, providing deceleration. Thrust reverser systems are featured on many jet aircraft to help slow down just after touch-down, reducing wear on the brakes and enabling shorter landing ...
The reverse-thrust ratio (ratio of backward engine thrust to forward reverse thrust) can be as high as 84%. [6] However, this result is obtained with a cowl to attach air flow in a 7° angle and a large enough "target" (deflector door) installed. A reverse-thrust ratio of 55% can be reached on a simple target without the cowl. [7]
The aircraft landed safely. A post-landing inspection showed that one of the 585-pound, 4-foot-wide, 5-foot-long thrust reversers had fallen off the aircraft. Divers later found the thrust reverser on the bottom of the nearby Banana River. An investigation showed that a bolt failed, releasing the part from the aircraft. [3] [4]
[citation needed] The NTSB determined that the probable cause was the pilots' failure to use available reverse thrust promptly to safely decelerate or stop after landing, which resulted in a runway overrun. This failure occurred because the pilots' first experience and lack of familiarity with the airplane's autobrake system distracted them ...
According to the NTSB investigation update issued on April 2, 2015, investigators found that Delta's MD-88 pilot operational materials (manuals) contained guidance recommending that pilots limit the reverse thrust engine pressure ratio (EPR) to 1.3 when landing on "contaminated" runways, i.e., runways with increased levels of risk related to ...
In a multi-engine aircraft, if one engine fails, it can be feathered to reduce drag so that the aircraft can continue flying using the other engine(s). In a single-engine aircraft, if the engine fails, feathering the propeller will reduce drag and increase glide distance, providing the pilot with more options for the location of a forced landing.
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To avoid a fatal collision, Miles immediately disengaged reverse thrust and both pilots slammed the throttle levers all the way forward and pulled back on their control columns to abort the 737's landing and initiate a go-around. They pushed so hard on the throttles that Miles fractured his thumb. [6]