B747-200 V2 Speed
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Join Date: Aug 2002
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B747-200 V2 Speed
Would someone give me a number for V2 of a B747-200 at approx 270 tonnes flap 20 and flap 10? (flap 20 is the normal takeoff, correct?) Thanks.
Wonderful, thanks for that. Not to be greedy, but I forgot to ask for Vref Flap 30 at the same weight. Thank you!!
Vref = Mass/3 + 57.
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A quick gouge is 118 knots at 400,000 lbs. for flaps 30. Add 3 knots for each 20,000 lbs more-500,000 lbs.= 133 knots. Its not 100 % accurate, but pretty close-within a couple of knots.
Join Date: May 2000
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Dunno 'bout "most"...
The "Frame" formed by the white bugs at V2+60 and V2+80 give a very good, quick visual reference for the Flaps1 and Flaps5 ranges when accelerating or decelerating.
The "Frame" formed by the white bugs at V2+60 and V2+80 give a very good, quick visual reference for the Flaps1 and Flaps5 ranges when accelerating or decelerating.