Chally
On jets it is quite common to use less than maximum flap for landing, for a variety of reasons, not least of which is it saves (a small amount of) fuel, but also because of the risk of overstressing the flaps in gusty winds.
We always fly the appropriate Vref for the flap setting used, then add the wind additions to that. On a 737 the FMC gives a Vref for flaps 40, 30 and 15, and we use the relevant one as a baseline, with the appropriate wind increment on top.
No idea what the Scarebus does.
Last edited by Pub User; 28th Nov 2012 at 20:50.