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Old 6th April 2010 | 16:54
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FCeng84
 
Joined: Feb 2009
Posts: 379
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From: Seattle
Boeing 777 and 787 manual flare compensation easier to understand

I wish the Airbus control law were more clearly defined. For the 777 (and identical for the 787) a Flare Compensation function is always active for manual flare and landing. As main gear altitude decreases from 50 feet to zero (i.e., touchdown) an increasing nose down command bias is added that requires the pilot to hold aft column to counter. Flare is accomplished with a monotonic pull until main gear touchdown (target of 15 to 20 pounds at touchdown). Nose let-down is accomplished by relaxing the column thus allowing the flare compensation bias to command negative pitch rate.
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