Well, 2,500 hours in the original C I and C II, they have split V1 and Vr speeds, too. Fraser was PM, Carter was President and bell bottoms were leaving the scene.
While Cessna's explanation leads to the assumption that accel-stop and accel-go maybe different distances, they are almost certainly "balanced", hence the split between V1 and Vr. To the OP, remember, in the GO case, at V1 the take-off was continued on ONE engine, rotated and climbed on that ONE engine. In the STOP case, the first action to stop was taken by V1 and maximum braking applied until stopping. Easily the same distance, as I have seen once or twice. So few pilots ever use max braking that they do not believe how fast speed goes away.
Last edited by galaxy flyer; 12th Jan 2012 at 14:07.