
Originally Posted by
Race5
A couple of things to consider. The really fast unlimiteds are in the Experimental category. They do not have to abide by a factory set Vne like a certified aircraft. Since Jimmy's crash in 2011 RARA and the FAA require unlimiteds (and possibly other classes) to be dive tested. See the following info form the rule book:
All primary race pilots must submit a statement signed by the race pilot certifying that, at the anticipated density altitude of the race, the intended race aircraft has demonstrated a true airspeed of 105% of its projected qualifying speed and a turn capability of 150% of the approved race course maximum designed g-load of his/her race class prior to being eligible to race at NCAR.