The D-11-RE used a Pratt & Whitney R-2800-
63 with GE Type C-23 turbosupercharger and water injection system. Bodie's book says it produced 2000 HP @ 2700 rpm under WEP, but has a footnote that it
may have been 2300 HP (maybe with water injection?). The weight of this jug is about the same empty as the D-25, but fully loaded it is about 1100 lbs lighter. This is because this jug doesn't have bomb mount points on the wings. The D-11 carries the same exact same 8 gun ammo load for the guns--unlike the B stang which loses guns and ammo in it's "razorback" config.
<speculation>
Speed of the D-11 will be essentially the same as the 2 current jugs. The D-11 is a bit lighter and should turn
slightly better. Also, the razorback dorsal surface gave this jug better stability through turns--stability the jug lost when it went to bubbletop design. The razorback should be a more stable gun platform.
So nothing shocking here, but I believe this plane will make a better dogfighter than the previously modeled jugs. There is no purpose for adding this plane other than stopping my whining.