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1. 04:51 AM - Re: Measure RUDDER Deflection (Swing) Angle (Ian Brown)
2. 05:47 AM - Re: Measure RUDDER Deflection (Swing) Angle (Chenoweth)
Message 1
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| Subject: | Re: Measure RUDDER Deflection (Swing) Angle |
The rudder travel needs to be measured after it's mounted on the
aircraft, because the limiting factor is the exact positioning and
dimensions of the stops, which are mounted on the fuselage, not the
vertical stabilizer. How about, once it's mounted on the fuselage,
dropping a plumb line from the hinge to a piece of cardboard, and
dropping another one from some spot like the trailing edge of the rudder
where the light gets attached. You could do this in all three positions
and then just join the dots, and measure with an old fashioned
protractor.
Ian Brown
Bromont
Quebec
RV-9A C-GOHM
(about to fly off my last hour of test flight today!)
On Sun, 2009-06-21 at 20:51 -0700, Garey Wittich wrote:
> Greetings:
>
> Have my VS mounted to the work bench along with the Rudder attached.
> Trying to verify the 35 degree travel on the Rudder to the Left and
> Right of Neutral. Seen no Archieves on how to measure the angle other
> than laying the VS and Rudder on the work bench and using "Smart
> Level" to measure the deflection in the Up & Down positions. Must be
> "super simple" to measure it, but for some reason the method is not
> evident to me (now).
>
>
> Appreciate your help, Garey Wittich Santa Monica, CA
>
>
>
>
>
>
>
>
> Checked by AVG - www.avg.com
Message 2
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| Subject: | Re: Measure RUDDER Deflection (Swing) Angle |
Garey,
The way I did it was to use a carpenters' tool (don't know the name but it's
about the size of a tri-square with a fixed and a movable arm) that can be
set to any angle. I laid it against the fin, deflected the rudder, then set
the tool to the resulting position. Used a large protractor to figure out
what angle the tool was in. As I recall it was less than the prescribed
amount but a call to Van's revealed that it was plenty.
Bill
Albion, Maine
----- Original Message -----
From: "Ian Brown" <ixb@videotron.ca>
Sent: Monday, June 22, 2009 7:48 AM
Subject: Re: RV9-List: Measure RUDDER Deflection (Swing) Angle
>
> The rudder travel needs to be measured after it's mounted on the
> aircraft, because the limiting factor is the exact positioning and
> dimensions of the stops, which are mounted on the fuselage, not the
> vertical stabilizer. How about, once it's mounted on the fuselage,
> dropping a plumb line from the hinge to a piece of cardboard, and
> dropping another one from some spot like the trailing edge of the rudder
> where the light gets attached. You could do this in all three positions
> and then just join the dots, and measure with an old fashioned
> protractor.
>
> Ian Brown
> Bromont
> Quebec
> RV-9A C-GOHM
> (about to fly off my last hour of test flight today!)
>
> On Sun, 2009-06-21 at 20:51 -0700, Garey Wittich wrote:
>> Greetings:
>>
>> Have my VS mounted to the work bench along with the Rudder attached.
>> Trying to verify the 35 degree travel on the Rudder to the Left and
>> Right of Neutral. Seen no Archieves on how to measure the angle other
>> than laying the VS and Rudder on the work bench and using "Smart
>> Level" to measure the deflection in the Up & Down positions. Must be
>> "super simple" to measure it, but for some reason the method is not
>> evident to me (now).
>>
>>
>> Appreciate your help, Garey Wittich Santa Monica, CA
>>
>>
>>
>>
>>
>>
>>
>>
>> Checked by AVG - www.avg.com
>
>
--------------------------------------------------------------------------------
Checked by AVG - www.avg.com
06:53:00
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