It wouldn't be hard to do that. Or use a z-bend and a 1/2A nylon clevis.
I do like Jim Larkin's of an extended servo arm pushing the spoiler open. I think it
would stay closed, otherwise, use a small magnet to hold it shut:
> extended the servo arm with a piece of 1/8 dowel... The extended arm simply swings
>up and pushes the spoiler open. <
The plus is that there wouldn't be any need for critical adjustment to close the
spoiler perfectly-- a small amount of slop or lost motion at the beginning of the
travel wouldn't matter. IMO, the critical item in a spoiler is that it must close
flush with the airfoil surface and not change the airfoil profile. The spoilers on
my GL are touchy-- close them down all the way and the servo buzzes; get rid of the
buzz, they stand a bit up from the wing surface .
I've got some good ideas to putter with now...
--Bill
On Mon, 20 Nov 2000 18:00:30 GMT Adam Till <[EMAIL PROTECTED]> wrote:
I wouldn't hurt to have some form of mechanical adjustment, especially since
thermal expansion will give enough headaches if you don't have some ability
to tune. Here's a cheap way to do that. Take a pair of mole grips/vice
grips/whatever you call them and use the cutters on them to clip off the end
of a 2-56 rod. The clippers flatten the ends of the rods just enough that a
2-56 clevis will thread right on - easy! Kind of a do-it-yourself thread.
I've never had this fail on me - I've done it on light control surfaces on
occassion too. It came of having lots of wire, but no THREADED wire.
Cheers,
Adam
>Do you think I'll run into problems with this approach, or should I plan to
>add some mechanical adjustement to the linkage?
>
>Thanks,
>
>--Bill
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