37.5% TOC YAK - Drilling control surfaces?

[falconpilot]

Anyone who has drilled the control surface for the control hornson the TOC/Avaiton Models Yak, I need a little help. Some have said to lay surface flat and drill forthe horn - this would create an angle on the control horn but allow more throw. Other have said to square it up and drill, resulting in a straight control horn resulting in less throw or surface travel. Which way did you go? Thanks Jim

[3ddd]

i set mine up level and drilled them straight with leading edge of the ailiron

[TheTank]

Just drilled my last ones on this airplane, I shoot for perpendicular to the hinge line.

[falconpilot]

Thanks guys!! Jim

[Throttlestick]

Okay guys here is a question for you.Would it be better to offset the control horn to the inside toward the servo a 1/4 inch?
I guess what I am trying to say is that when the servo is centered instead of having the push rod run straight it would actaully be centered inward towards the servo on the control surface about a 1/4 inch.

[rdgood]

Throttlestick,

Well that depends - I think what really matters is where your pivot point is in relationship to the hinge line where-ever those two line up determines where you drill in my opinion. What you don't want is a mismatch between your linkage pivot and your hinge line. With regards to the offset in relationship to the servo arm
I think you need to be carefull when moving the drill point on the aileron over more in-line with the servo arm
axis. So move the servo arm max throw either direction to determine throw so there is no binding or interference. That will show you how much to move the aileron drill hole. If that makes sense.

Hope this helps,


Ronster