I have a reduction gear. I believe that was standard on the 36. You will need a smaller prop for DD. Lots of options there but I have no expertise with that. Did you start a new thread with that question or only post in your messages box. That won't get noticed by too many except a few members that are "chatting" with you.
Recently I changed my atomic 4 / had a gear reduction atomic 4 changed it for a direct drive. I didn't change props so now I can't get any rpms when in gear. Prop on now is Dia 16 pitch 10. Can anyone help me on what prop I need
W.W.
Greetings,
I see you have a Columbia 36. Me too.
It'd be fun to chat with someone about common issues.
I rebuilt my a-4 a few years ago. most of that progress was covered on this forum. maybe some data there could be of some use?
Anyway, welcome to the forum. I've met of couple of the regulars personally. It's really a good bunch.