Mirv,
The conversion from Thrust to Horsepower is not a straight conversion of units, such as Kilometres per Hour to Miles per Hour, it depends upon the Thrust and the speed of the aircraft, as derived from the basic relationship where -
Power = Force X Velocity.
As a straight conversion to eliminate the constants of the various units used, the following formula applies -
Pa = Ta V / 325, where -
Pa = Propulsive Power available in Horse Power, Ta = Thrust available in Pounds, and V = Velocity in Knots.
In the example that you quoted, FLTLT Farnarkle's aircraft, whilst producing 35,000lbs of thrust, is producing absolutely ZERO Power whilst holding on the brakes, but 53846 HP when moving at 500 Knots (TAS).
Your Ford Laser equivalent made me remember one of my son's "young science" books where it quoted the Concorde as producing the equivalent power of 55000 Mini Minors. Has the Ford Laser replaced the Mini Minor as the layman's unit of equivalent power?
If you get the Thrust of that, it will add more Power to your commentary.
Regards,
Old Smokey (who has owned a Mini Minor and a Ford Laser)