747focal,
as mutt said, this procedure is called Improved Climb or Increased V Speeds ie. converting excess runway into speed to improve 2nd segment climb performance. this procedure is not limited to any aircraft type but applicable to all perf A aircraft. all CAA licence holder will remember this during their Performance A exam.
many considerations have been taken into account before one can undertake such procedures eg. runway limit, climb limit, obstacle limit, brake energy limit, etc. if i recall correctly, there also a V1/Vr ratio to consider.
it brings to mind an IP in our company who teaches such procedures on a field length limited runway !!
HS
Edited for typos
[This message has been edited by HighSpeed (edited 15 February 2001).]