The trouble with a bungee is that when you move the stick forward or back
the tension on the bungee will increase. So - why not a weight on a bar on
either side of the base of the stick, which can be moved out to increase the
(very slight) forces for trim, and will even work in the right direction
when you are upside down and need to reverse the trim factor (not that we
would voluntarily adopt this posture)
---From the mad ideas department...hb
----- Original Message -----
From: James H Nelson <europajim@juno.com>
Subject: Re: Europa-List: Aileron Trim Servo
>
> John,
> I installed a tiny MAC servo in my aileron for just that
> situation. It needs to be a minimum of 1.5" by 8" More is better in span
> wise. We are limited in depth but width is flexible. One of the reasons
> for the trim is if you don't get both wings exactly fitted to the
> fuselage. I have a heavy stbd wing and even in solo flight I need about
> 50% of my trim operation to keep the aircraft in level trimmed flight.
> I might add a bit to the length to make it more effective but that will
> make the aileron look like it has a trim tab.. Mine is only 6" wide. If
> I had thought about this longer, I would have made it 8" in length.
> Someone has put a trim unit inside with a bungie cord and a lever to
> apply certain amounts of pull. I don't know about its success but mine
> works as it was designed. Just now as effective as I wanted.
>
> Jim Nelson
> N15JN
>
>
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