REFLECTOR: Autopilot servos

[Geoff Gerhardt]

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:

> Geoff
> There 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>
> 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>geoff at thegerhardts.com>
>> To: Velocity Aircraft Owners and Builders list < <reflector at tvbf.org>
>> 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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