Today's Message Index:
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1. 04:47 AM - Trim servo (Owen Baker)
2. 05:03 AM - Re: Trim servo (Scott MacIntyre)
3. 02:21 PM - Re: Navaid Autopilot (Barry J Edwards)
Message 1
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5/8/2013
Hello Scott, I am attempting to solve the very same problem in my KIS TR-1
center stop, spring bias, pitch trim system. The movement of the T3-12 Ray
Allen servo presently installed is too short.
I have purchased a Firgelli actuator. See here:
http://www.firgelli.com/products.php?id=42
and here:
http://www.firgelli.com/Uploads/L16_datasheet.pdf
My present concern is how to solve the indicator problem. The Ray Allen LED
indicator, presently installed in my instrument panel, and the output of the
Firgelli actuator may not be compatible. I have also purchased an indicator
from Firgelli. See here:
http://www.firgelli.com/Uploads/Pos%20datasheet.pdf
But it does not exactly fit the same hole in my instrument panel. Still
scratching my head on how to solve this problem.
What is your trim indicator situation?
OC
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Time: 09:23:21 AM PST US
From: Scott MacIntyre <scott@s-f-x.com>
Subject: Pulsar-List: Trim servo
Hi
I have a Pulsar XP and am updating the trim servo (pitch). The old
unit was horrible and I want to use a Ray Allen T3-12 unit which will
give 1.2" of travel on my bias spring. The old system allowed 60mm or
2.3" so I would have to double the distance travelled by a lever or
pulley and so double the effort required. Any idea what the best way
to utilise one of these servos for pitch might be ?
Regards
Scott MacIntyre
23 Mellor Road
New Mills
Derbyshire
SK22 4DP
UK
UK Mobile: +44 7860 208432
US Mobile: +1 (818) 397-0666
Email: scott@s-f-x.com
Message 2
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Hi
The potentiometer type indication should work if the value is 5k at
full travel - I have a Dynon Skyview which will work with a number of
indicators.
The LAA thought the linear actuator I had proposed was over engineered
and urged me to find a lighter solution.
Be wary of the travel time - I need just over 2 inches of travel to
match the original unit. I think the Ray Allen unit will be about 13
seconds end to end. I will put a spring balance on the bias spring and
see what the forces turn out to be.
Regards
Scott MacIntyre
G-BUZB
23 Mellor Road
New Mills
Derbyshire
SK22 4DP
UK
UK Mobile: +44 7860 208432
US Mobile: +1 (818) 397-0666
Email: scott@s-f-x.com
Message 3
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| Subject: | Re: Navaid Autopilot |
Thanks Bill,
I=99ve been in touch with Trio and have bought one of their
servos. A very fast service across the Atlantic =93 less than 5
days for order to my door.
Barry
From: Bill S
Sent: Monday, April 29, 2013 6:51 PM
Subject: Re: Pulsar-List: Navaid Autopilot
Barry
If you canot repair your s2 servo. Trio avionics has a replacement
servo for the navaids ap1 Bill S.
----- Original Message -----
From: Barry J Edwards
To: Pulsar Builders
Sent: Monday, April 29, 2013 11:35 AM
Subject: Pulsar-List: Navaid Autopilot
Hi All,
My ancient Navaid Devices Autopilot servo has started tripping the
circuit breaker all the time and is therefor U/S. I know the original
company no longer exists but does anyone know of anywhere that can
repair this for me? It happened once before a good few years ago and
Navaid found it was a faulty ground somewhere. I=99ve had a look
but it=99s all to involved for me!
Thanks,
Barry
G-XPXP Pulsar XP Taildragger 1020hrs. UK
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