Elevator Trim - Type III

[cgruby]

I've decided I would like to have an elevator trim and am curious what other 's are using out there.

I figured a simple Bowden cable, operating a simple tab would suffice. What about electric trims? Anybody using a model airplane servo?

[avidflyer]

The simplest elevator trim is a piece of bungee cord tied on both ends to the seat truss and wrapping around the joystick. Pull the cord higher up on the joystick for more up elevator. Jim Chuk

[cgruby]

Thanks Jim, That sounds like a good plan. I'll give it a try.

[FoxDB]

I am using a trim kit from Aeroconversions: http://www.aeroconversions.com/products/trim/index.html

[Peteohms]

I am using a trim kit from Aeroconversions: http://www.aeroconversions.com/products/trim/index.html

Got any pictures of your installation?

[FoxDB]

Sorry did not take pictures and it is under the seat

[cgruby]

I am using a trim kit from Aeroconversions: http://www.aeroconversions.com/products/trim/index.html

I've been looking at that. Are you satisfied with it?

[FoxDB]

Cgruby
Yes I have, It is much more sable than using the flap handle as trim. My only complaint is that it still holds the stick up when shut off making more difficult to get my right foot over when getting in or out.

[cgruby]

Cgruby
Yes I have, It is much more sable than using the flap handle as trim. My only complaint is that it still holds the stick up when shut off making more difficult to get my right foot over when getting in or out.

I appreciate your response. I have just placed an order for mine. I was looking at an electric trim arrangement, but it is much more expensive, and probably a little over kill for this little airplane. Manual trims have always worked fine for me. Thanks again.

[Av8r3400]

I figured a simple Bowden cable, operating a simple tab would suffice. What about electric trims? Anybody using a model airplane servo?

Remember: Bowden cables are designed to pull, only. They do not push. You will either need to use them in a pair, pulling opposite directions or with some other method (spring, etc) of moving the surface in the opposite direction.