Preface: can't use RADs in this application, so this will be conventional horn+rod
linkage.
Let me run this by you. I'm adding spoilers to an Oly 99 I'm refurbishing and want to
have a simple and light linkage that will fit in a tight space.
The spoiler bays will be placed behind the main spars, incised into the ribs and about
3/16" deep. The "floor" of the bays will be made of 1/32 ply.
A Hitec HS-80 or -81 micro servo will actuate each spoiler and will be servo-taped to
the underside of the ply servo bay floor. Linkage will be simple: 1/16" wire with
Z-bends connecting the servo arm to a ply control horn on the spoiler panel. No
adjustment in the length of the linkage rod is planned, I think can get the coarse
adjustment done when the servo is installed. The spoiler panel closed position and
full-open position will be further adjusted via the Travel Volume and Sub-trim
adjustments in the 'puter Tx.
I think this linkage arrangement will work. I've just never tried to rely on the Tx
servo volume and subtrim to make major adjustments adjustments on a control surface--
I've always gotten them very close with mechanical adjustments and then "fine tuned"
with the Tx.
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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