The M.B.151C.1 doesn’t have a constant speed propeller, which makes it impossible to fly effectively with manual engine controls. It also shows the engine as a Hispano-Suiza 12Y-45 in the X-RAY view instead of the Gnome-Rhone radial it should have. Most aircraft with rankless propeller pitch control also have a constant speed mechanism. Those without have only 2 positions normally, the early 109’s being a notable exception. The M.B.152C1 should have roughly the same engine, and it has a constant speed mechanism. All other Gnome-Rhone engines in game have constant speed mechanism. I strongly believe this is an error.
I opened a bug report. If you feel that my assessment is correct, then please click “I have same issue!”.
M.B.151C.1 no constant speed propeller and wrong engine in X-RAY // Gaijin.net // Issues