----- Original Message -----
Sent: Friday, May 26, 2006 8:46 AM
Subject: [FlyRotary] Re:
Ammeter/Ivo
I have installed a balance type ammeter in the prop circuit as is
being discussed here.
In the attached photo of my engine/prop control cluster you can see that
the prop control is labeled, not the meter. The meter is installed vertically
and deflects in the same direction as the control switch so there is no need
to label the meter since it is just a visual reference to assure that when you
deflect the control that something is actually happening.
This has already saved me lots of time troubleshooting when the prop
adjustment is not working.
Jim
Ed Anderson <eanderson@carolina.rr.com>
wrote:
Buley,
Just so you have the frame of reference firmly in your mind. For
example, you could either have the amp meter labeled with the first
order
effect - Lower Pitch /Higher Pitch or second order effect Higher
RPM/Lower RPM. Since it is engine rpm that I would be primarily
interested
in, I (if I had a variable pitch prop) might label the meter
with Higher
RPM/Lower RPM or perhaps Increase RPM/Decrease RPM rather
than lower
pitch/higher pitch (the latter requires some mental
manipulation). Just a
point of view.
Ed
----- Original
Message -----
From: "Bulent Aliev"
To:
"Rotary motors in aircraft"
Sent: Friday,
May 26, 2006 6:39 AM
Subject: [FlyRotary] Re: Ammeter/Ivo
>
Kelly, I was thinking mounting it vertical. Low pitch down, High pitch up
> ? same with the switch.
> Buly
> On May 26, 2006, at
1:07 AM, Kelly Troyer wrote:
>
>> Bulent,
>> Forgot
to note that you need to label one side of the ammeter "pitch
>>
increase"
>> and the other side "pitch decrease"......With a single
sweep ammeter you
>> would
>> not always know where you
were in pitch if you forgot which way your
>> switch
>>
was wired ("Now was that up or down for more pitch??")......
>>
--
>> Kelly Troyer
>> Dyke
Delta/13B/RD1C/EC2
>>
>>
>>
>>
>>
-------------- Original message from keltro@att.net (Kelly
>>
royer): --------------
>>
>> Bulent,
>> When prop
is at midpoint of pitch there is essentially no load on the
>>
motor.
>> When you add pitch the ammeter needle swings one way
(from 0 to ? amps).
>> When you reduce pitch you are reversing
polarity of the D.C. motor and
>> it
>> turns opposite
direction and loads the ammeter to the opposite
>>
side........
>> --
>> Kelly Troyer
>> Dyke
Delta/13B/RD1C/EC2
>>
>>
>>
>>
>>
-------------- Original message from Bulent Aliev
>>
: --------------
>>
>>
>>
> I need a second opinion on the ammeter setup for the Ivo prop.
John
>> > Slade is using the centering kind. I think it should
be one sweep
>> > from 0-15 or 0-20A? Anyone else using the same
setup, please let me
>> > know the details.
>> >
Buly
>> > http://tinyurl.com/dcy36
>> >
>>
>
>> >
>> >
>> > --
>> >
Homepage: http://www.flyrotary.com/
>> > Archive and UnSub:
http://mail.lancaironline.net/lists/flyrotary/
>
> Buly
>
http://tinyurl.com/dcy36
>
>
>
>
> --
>
Homepage: http://www.flyrotary.com/
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>
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