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Old 1st Nov 2012, 11:02
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AirbusBoeing2
 
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A321 Vfo

A fully loaded A321 (at or close to MTOW) can exceed Vfo after takeoff with the autopilot on. The limit for flaps 1 or less, is 215 knots. At heavy weights, S-speed can be as high as 218 knots (above Vmo). The AutoRetract System operates at 210 knots, however this leaves only 5 knots before Vfo is exceeded. My company hands out QAR's for a 1 knot exceedance. They suggest we use selected speed to avoid this situation, however this doesn't work well, since Vls rapidly increases after flaps retract, and soon you find "selected speed" is Below Vls and could get into Alphafloor, which is another can of worms. What is Airbus' view on this...or anyone else who cares to comment ???????
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