Almost all aircraft have prop pitch. The Fw 190, bf 109, p-51, tempest, and so on all have it. The german planes have a auto prop pitch you can turn on and off. Once off you can control the prop pitch like you want it. When I fly the 109, I cruz with prop pitch on, but in combat its off. Its a little bit more work keeping a eye on the prop pitch, but i get more speed that way. Another thing could be that u have it set up on simple engine settings. You will have to have it on complex engine management to get the prop pitch controls to work. hope this helps.