Overhaul arc? You mean
this one? I just re-calculated it at
Mach 5.
This one uses perception speed, we can't use that anymore for blitzing feats, only reaction speed.
As for
the other one, you seem to have used the old angsizing formula, since you are converting radians to degrees when you can't no longer do that.
Endeavor's Height = 195 cm or 1.95 m
Panel Height =
25.6 m
Distance = 1.95*25.6/[1.95*2tan(70/2)] = 18.28 m
Endeavor + Hawks Feathers Feat = 18.28/0.0007 = 26114.28 m/s, Mach 76.13
RIP, that's too slow to be blitzing AFO and we haven't even subtracted whatever boost the feathers are giving.