P47N is fastest of the lot by 25 knots or so, but ONLY while wep remains, (engine can overheat, killingf wep, even though it remains...let it cool down, turn wep on agin) otherwise D40 is better plane, as N is larger, and climbs slower. I still like the N...save wep and use it judiciously, like when the horde is after me:)