6" stroke cummins spinning 2200 rpm comes to about 37 ft/s. Thats with 12lb monotherms pumping up and down not to mention some hefty rods.
I sat and watched a large cummins governed out at 3000rpm (50ft/s) for minutes on end free reving in a blow up competition which it did not.
It would be interesting to see the lbs of force needed to reverse the direction of this piston and compared with the idi, g-force is cool but changing direction of a 2lb object vs a 12lb object at a given g takes a lot more force.
I sat and watched a large cummins governed out at 3000rpm (50ft/s) for minutes on end free reving in a blow up competition which it did not.
It would be interesting to see the lbs of force needed to reverse the direction of this piston and compared with the idi, g-force is cool but changing direction of a 2lb object vs a 12lb object at a given g takes a lot more force.