REFLECTOR: Autopilot servos

[John Dibble]

I think the torque adjustment is there so you can adjust so that you can
overpower the AP.

John

Geoff Gerhardt wrote:

> Peter, I found the torque adjustment - its set to 100%.  After playing
> with it a bit, the AP servo can control over a pretty good range
> before it has to be re-trimmed.  When the AP starts to sense a load,
> it notifies the pilot to trim, and which direction to trim. Thanks.
> Geoff
> On Sat, May 28, 2011 at 11:20 AM, Peter
> Braswell <peter.braswell at gmail.com> wrote:
>
>      GeoffThere is a torque adjustment you can do in the set up
>      and configuration menu if you need it. Peter
>
>      Sent from my iPhone
>
>      On May 28, 2011, at 9:51 AM, Geoff Gerhardt
>      <geoff at thegerhardts.com> wrote:
>
>
>     > Scott/John, After playing with it a bit, and enabling
>     > altitude hold on the Dynon, I see that it give messages to
>     > trim.  Also, I ran the test procedure again with the trim
>     > adjusted right in the middle, the AP ran the pitch servo
>     > up and down over the relatively small range it uses to
>     > test successfully, so I think its functioning normal.
>     > I'll post on the Dynon support forum just to check, tho.
>     > Thanks. Looking fwd to Oshkosh - hoping to be flying there
>     > next year. Geoff
>     > On Sat, May 28, 2011 at 10:13 AM, Scott
>     > Derrick <scott at tnstaafl.net> wrote:
>     >
>     >      My Century AP asks me to adjust trim when the
>     >      flight conditions change.  There is no way the
>     >      AP is going to overpower the trim spring and
>     >      flight loads.
>     >
>     >      Your training the AP as to how far it "can"
>     >      move. Not testing its muscle.
>     >
>     >      I think its functioning normally but a call to
>     >      Dynon may be in order.
>     >
>     >      Scott
>     >
>     >
>     >
>     >      -------- Original Message --------
>     >      Subject: REFLECTOR: Autopilot servos
>     >      From: Geoff Gerhardt <geoff at thegerhardts.com>
>     >      To: Velocity Aircraft Owners and Builders list
>     >      <reflector at tvbf.org>
>     >      Date: 05/28/2011 05:31 AM
>     >
>     >      > Hi all, I installed my pitch autopilot servo
>     >      > and powered up my Dynon Skyview to get it
>     >      > calibrated.  The calibration process has you
>     >      > move the pitch to its extremes to set the
>     >      > endpoints.  Once calibrated, it tests the
>     >      > servo.  I have the Strong Pitch trim installed,
>     >      > so it takes quite a lot of force to overcome
>     >      > the pitch trim (not sure if this is similar to
>     >      > the factory trim system).  Only with my help on
>     >      > the stick can the autopilot servo go to the
>     >      > extremes - is that normal?  Is it expected that
>     >      > the pilot will keep adjusting the pitch while
>     >      > on AP so the servo doesn't have to work too
>     >      > hard?  Or, should I put a longer lever arm on
>     >      > the servo to increase the torque it can
>     >      > deliver? Thanks.
>     >      > Geoff
>     >      >
>     >      >
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