Gents (there's an assumption!!)
Many thanks for your inputs one and all. This is as I supected and I will now go into the sim and try again with full aft CoG etc. In addition I will ask the learned folk @ AI.
I was refferring to an Airbus, but the comments on the 747s are pertinent as we also operate that type and the FCTM says that the x-wind to Vmcg increment is more like 2:3knts. ie 3 knots increase for every 2 knots x-wind. I know BA used to use this factor (or something similar) on the 747 to increase V1 if necessary but I don't believe that is done now on the -400.
I will report back with more info when I can!
