X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from ms-smtp-04.southeast.rr.com ([24.25.9.103] verified) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1128893 for flyrotary@lancaironline.net; Fri, 26 May 2006 09:03:45 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.103; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-111-186.carolina.res.rr.com [24.74.111.186]) by ms-smtp-04.southeast.rr.com (8.13.6/8.13.6) with SMTP id k4QD2t8q000204 for ; Fri, 26 May 2006 09:02:56 -0400 (EDT) Message-ID: <001f01c680c4$b545e580$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Ammeter/Ivo Date: Fri, 26 May 2006 09:02:56 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001C_01C680A3.2DEA6B40" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2869 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_001C_01C680A3.2DEA6B40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Good point, Jim. Labeling the activation lever is a more actionable = approach, rather than moving the switch and then reacting to the way the = needle moves. Ed ----- Original Message -----=20 From: James Maher=20 To: Rotary motors in aircraft=20 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 wrote: Buley, Just so you have the frame of reference firmly in your mind. = For=20 example, you could either have the amp meter labeled with the first = order=20 effect - Lower Pitch /Higher Pitch or second order effect Higher=20 RPM/Lower RPM. Since it is engine rpm that I would be primarily = interested=20 in, I (if I had a variable pitch prop) might label the meter with = Higher=20 RPM/Lower RPM or perhaps Increase RPM/Decrease RPM rather than lower = pitch/higher pitch (the latter requires some mental manipulation). = Just a=20 point of view. Ed ----- Original Message -----=20 From: "Bulent Aliev"=20 To: "Rotary motors in aircraft"=20 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=20 > ? 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=20 >> increase" >> and the other side "pitch decrease"......With a single sweep = ammeter you=20 >> would >> not always know where you were in pitch if you forgot which way = your=20 >> 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=20 >> royer): -------------- >> >> Bulent, >> When prop is at midpoint of pitch there is essentially no load on = the=20 >> 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=20 >> it >> turns opposite direction and loads the ammeter to the opposite=20 >> side........ >> -- >> Kelly Troyer >> Dyke Delta/13B/RD1C/EC2 >> >> >> >> >> -------------- Original message from Bulent Aliev=20 >> : -------------- >> >> >> > 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/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ >=20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ -------------------------------------------------------------------------= ----- -------------------------------------------------------------------------= ----- -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ ------=_NextPart_000_001C_01C680A3.2DEA6B40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Good point, Jim.  Labeling the activation = lever is a=20 more actionable approach, rather than moving the switch and then = reacting to the=20 way the needle moves.
 
Ed
----- Original Message -----
From:=20 James=20 Maher
Sent: Friday, May 26, 2006 8:46 = AM
Subject: [FlyRotary] Re:=20 Ammeter/Ivo

I have installed a balance type ammeter in the prop circuit = as is=20 being discussed here.
In the attached photo of my engine/prop control cluster you can = see that=20 the prop control is labeled, not the meter. The meter is installed = vertically=20 and deflects in the same direction as the control switch so there is = no need=20 to label the meter since it is just a visual reference to assure that = when you=20 deflect the control that something is actually happening.
This has already saved me lots of time troubleshooting when the = prop=20 adjustment is not working.
Jim

Ed Anderson = <eanderson@carolina.rr.com>=20 wrote:
Buley,=20 Just so you have the frame of reference firmly in your mind. For=20
example, you could either have the amp meter labeled with the = first=20 order
effect - Lower Pitch /Higher Pitch or second order effect = Higher=20
RPM/Lower RPM. Since it is engine rpm that I would be primarily=20 interested
in, I (if I had a variable pitch prop) might label = the meter=20 with Higher
RPM/Lower RPM or perhaps Increase RPM/Decrease RPM = rather=20 than lower
pitch/higher pitch (the latter requires some mental=20 manipulation). Just a
point of view.

Ed


----- = Original=20 Message -----
From: "Bulent Aliev" =
To:=20 "Rotary motors in aircraft"
Sent: = Friday,=20 May 26, 2006 6:39 AM
Subject: [FlyRotary] Re: = Ammeter/Ivo


>=20 Kelly, I was thinking mounting it vertical. Low pitch down, High = pitch up=20
> ? same with the switch.
> Buly
> On May 26, = 2006, at=20 1:07 AM, Kelly Troyer wrote:
>
>> Bulent,
>> = Forgot=20 to note that you need to label one side of the ammeter "pitch =
>>=20 increase"
>> and the other side "pitch decrease"......With = a single=20 sweep ammeter you
>> would
>> not always know = where you=20 were in pitch if you forgot which way your
>> = switch
>>=20 was wired ("Now was that up or down for more = pitch??")......
>>=20 --
>> Kelly Troyer
>> Dyke=20 = Delta/13B/RD1C/EC2
>>
>>
>>
>>
>= ;>=20 -------------- Original message from keltro@att.net (Kelly =
>>=20 royer): --------------
>>
>> Bulent,
>> = When prop=20 is at midpoint of pitch there is essentially no load on the =
>>=20 motor.
>> When you add pitch the ammeter needle swings one = way=20 (from 0 to ? amps).
>> When you reduce pitch you are = reversing=20 polarity of the D.C. motor and
>> it
>> turns = opposite=20 direction and loads the ammeter to the opposite
>>=20 side........
>> --
>> Kelly Troyer
>> = Dyke=20 = Delta/13B/RD1C/EC2
>>
>>
>>
>>
>= ;>=20 -------------- Original message from Bulent Aliev
>>=20 : = --------------
>>
>>
>>=20 > I need a second opinion on the ammeter setup for the Ivo prop.=20 John
>> > Slade is using the centering kind. I think it = should=20 be one sweep
>> > from 0-15 or 0-20A? Anyone else using = the same=20 setup, please let me
>> > know the details.
>> = >=20 Buly
>> > http://tinyurl.com/dcy36
>> = >
>>=20 >
>> >
>> >
>> > = --
>> >=20 Homepage: http://www.flyrotary.com/
>> > Archive and = UnSub:=20 http://mail.lancaironline.net/lists/flyrotary/
>
> = Buly
>=20 http://tinyurl.com/dcy36
>
>
>
>
> = --
>=20 Homepage: http://www.flyrotary.com/
> Archive and UnSub:=20 http://mail.lancaironline.net/lists/flyrotary/
>=20



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=

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