pitch

Hi all, So, a question: I watched a YT video on the Propellers. As I hear, all props are constant speed, some have a selectable pitch. Correct? If yes, an aircraft with a variable pitch, (constant speed) propeller, set to fine pitch, accelerates down the runway, the 1. RPM would stay...

I’m flying a rental aircraft with an older style Sigma-Tek AI (an s3326-1). Can anyone tell me what the marked but unlabeled positive pitch angles are? I assume they are 5 and 10 degrees of pitch but can’t find authoritative answer. Thanks

Troublesome problem here. I have a 1986 Mooney 252, equipped with a KFC 150 autopilot with KAS 297B altitude preselect. There's also a roll-steering adaptor but I don't have the model number handy. For about a year once in a while (approx. once per flight) I'd get an excessive pitch up during...