RE: WILLHOBBY FW 190 Build
I'm still curious what results you get with your prop. But someone else may post some proven advice first.
I hate saying this,,, and I see the scale masters do this too. After the judges score their warbirds for looks they take the multibladed props off and put two bladed props back on to make their flight. NOW,,,,, not all do this. And those with the big, powerful 5 cyl radials , etc, etc can run three bladers just fine. But I've never had even close performance results with the three bl. I hate the 2 bl look too bud. But sometimes it's better to have thrust and lift in a slow situation than a scale looking prop. I'm sure opinions vary.
Rule of thumb for three blade use is come down one in size and go up two in pitch from a two blade.