FlyerTalk Forums - View Single Post - Ever leave the gate on reverse thrust?
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Old Mar 5, 2012 | 12:24 am
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WHBM
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Powerbacks (what these are termed) have pretty much come and gone. Firstly, due to the inefficiency when the thrust reversers are deployed compared to normal forward power, you need a lot of thrust to get backwards movement, which can be hazardous when in close proximity to ground equipment and crews, etc, so a significant number of airport operators just banned it outright. Secondly, the dirt kicked up by reverse thrust was just about acceptable for tail mounted engines, but not for underwing, closer to the ground, so as 727s and DC9s have been replaced by ubiquitous 737s and A320s, the approach has gone.

Prop aircraft can do it much more effectively by just going into reverse pitch on the propellers; the Dornier 328 operator from London City to Edinburgh always uses it at the latter point to back away from the terminal under marshallers control. The subsequent transition from reverse to forward movement is instantaneous.
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