In article , Guy Alcala
writes
The Brits had done some tentative early testing, but the USMC did the
majority of the development. Harry Blot, then a Major or Col., later a Lt.
Gen. IIRR, and now (again IIRR) head of the JSF program for Lockheed, was
the project pilot. He supposedly decided that he might as well go for the
max., so got an AV-8A up to 500 knots or so and then slammed the nozzles
down to full braking stop. As he has told the story (perhaps improved in
the telling), the a/c started decelerating at a very high rate, the
magnitude of which he was unable to judge as he'd been thrown forward in
his straps and was desperately holding on to the seat with one hand, trying
to avoid smashing his face into the gunsight.

Sharkey comments in his book that the SHAR will decelerate at 2+G in the
full braking stop, which was like hitting a wall.

--
John