Hatz Biplane Association

I’m using an O-320 with a wood 74x54 prop. Im interested in what other Hatzers with O-320s are using for props and what amount of engine offset they used when building. I’m running out of options to remedy a fairly strong left turning tendency. e.g. when I bank to the left all is well rolling back to the right much more stick force required. Maybe that’s normal. All wing rigging double checked and tail checked as well. Vertical fin offset 1” for the 150 hp. I will be going back and checking my engine offset next. Looking for other things I can check.

Do you have a trim tab on the rudder?

Steve

No Steve I don’t have a rudder trim tab. My goal is to try everything I can think of and then add a trim tab if needed. It’s looking like I may need one. Could you share your experience on the best way to approach adding a tab on the rudder.

Thanks for the reply and sorry for the delay.

I just attached to the bow with 2 sheet metal screws. My tab is probably around 4 " tall

Steve

I see. 4” x ?”

It probably has about 2" aft of the bow

Thank you!