One sec... need to find the math side of my brain *searches through cobwebs*
Okay, here goes:
-For every time we double airspeed by 2, we have to divide the lift coefficient by 4.
-380 knots is 1.52 times more than 250 knots (250 x 1.52 = 380)
-Doing a little cross multiplication, if we take (1.52 x 4Cl)/ 2, we get 3.04.
-Thus we would have to divide the lift coefficient of 0.2 by 3.04
-0.2 / 3.04 = a Cl of 0.067.
-Reading 0.067 on the graph is difficult lol. It's about -1 degree to -1.5 from the looks of it, but I dunno!
Seems quite a bit excessive at -1 to -1.5 aoa, especialy considering that our example of the P-51 wing at Mach.78 is only going to -0.93 AoA. (And thats a wing that could be modified, we don't really know) And depending on altitude, 0.78Mach is 46 knots faster than 380 at FL400 and 134 knots faster than 380 at sea level. And I'm sure the graph from the racing team is biased towards a lower altitude, since almost all of their races are done from 100 ft MSL to 5000 MSL through the pylons. And furthermore, we aren't even figuring in what the impact Mach Tuck is gonna have on the AoA as we get into the higher airspeeds...
Anyway, I'm gonna run and take the kids down to In N Out Burger.. Then stop by Van Nuys and see if I can get in contact with a P-51 Owner. Hey Dudley..
Whats your wingmans plane look like when you guys are flying in level flight while in formation?
Seeya all a bit later..