Originally Posted by
Pugilistic Animus
Vp is listed in Hurt's text as " The maneuver speed". I don't have Aerodynamics for Naval Aviators before me at this time but the Formula Vp= Vsn^.5 is listed in his book.
Zzuf would you please go into Vp and aquaplaning sounds very interesting...Although Vp is probably only for the Navy and may not exist in the FARs. The FARs may differ than in HHH's text with respect to definitions
It is just the standard aquaplaning speed calculated by:
The hydroplaning speed, VP, may be estimated by the equation VP= 9√푃, where VP is the ground speed in knots and P is the tire pressure in lb/in2.