BelArgUSA and others
The USAF, in just about all operational planes use some acceleration check speeds, typically time vs. achieved speed. In the C-5, for standing take-offs, we had a time to make a specified speed, usually 100 or 120 knots. The tolerance on the low side was only 3 knots, but I never had a plane not make it. One memorable take-off during Desert Storm, I had one that on brake release didn't feel right and as the take-off progressed I knew it would be close, turned out to be 2 knots under check speed of 120 knots at about 40 seconds, as i remember.
GF