V1min must be 105% of Vmcg, so V1 will never equal Vmcg. Next, Vmcg is calculated using rated TO thrust, so thrust does change not the Vmcg. CL-605 Vmcg is 105 KIAS, V1min is 111. Vmca is 114-119 KIAS, the lower number is good up to 34,500 pounds. The BFL calculation, by definition, balances the stop AND go cases, heavier gross weights must have a higher V1 to make the go case be "balanced".
If V1 were reduced to account for the stopping distance, the "go" distance, under OEI acceleration, would get very much longer. The stop calculation does limit how much we can increase V1, but we must increase it with ncreasing gross weight.
Last edited by galaxy flyer; 2nd March 2013 at 22:25.