X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao103.cox.net ([68.230.241.43] verified) by logan.com (CommuniGate Pro SMTP 5.3.9) with ESMTP id 4476801 for flyrotary@lancaironline.net; Wed, 22 Sep 2010 12:32:17 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.43; envelope-from=alventures@cox.net Received: from fed1rmimpo02.cox.net ([70.169.32.72]) by fed1rmmtao103.cox.net (InterMail vM.8.00.01.00 201-2244-105-20090324) with ESMTP id <20100922163141.XBAE23084.fed1rmmtao103.cox.net@fed1rmimpo02.cox.net> for ; Wed, 22 Sep 2010 12:31:41 -0400 Received: from BigAl ([72.199.216.236]) by fed1rmimpo02.cox.net with bizsmtp id 9sXg1f00n56cS2o04sXgj1; Wed, 22 Sep 2010 12:31:41 -0400 X-VR-Score: -100.00 X-Authority-Analysis: v=1.1 cv=RFAs0e+2sU49DU7hBECFSPlG3t5ZI1He37/O2GpqT7s= c=1 sm=1 a=lN8H/RjlhkCyIsyuOn2r7w==:17 a=Ia-xEzejAAAA:8 a=ayC55rCoAAAA:8 a=arxwEM4EAAAA:8 a=r1ClD_H3AAAA:8 a=o2QoyYduAAAA:8 a=7g1VtSJxAAAA:8 a=qIgXPE9HWl8tcUKKWEkA:9 a=7Mk_SjIeAh9ZdIJnrvkA:7 a=XAP28r7Y5B7k_vnBVsi1wA1KaykA:4 a=CjuIK1q_8ugA:10 a=Qa1je4BO31QA:10 a=EzXvWhQp4_cA:10 a=TlnOPt13aEMA:10 a=Sqv60kzV-NmA15iQStkA:9 a=ZV9fIPOpk9RutcqjVlkA:7 a=xlh0pKWZAH2IEpydBzZ4qy3jFykA:4 a=lN8H/RjlhkCyIsyuOn2r7w==:117 X-CM-Score: 0.00 Authentication-Results: cox.net; none From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Alternator Date: Wed, 22 Sep 2010 09:31:58 -0800 Message-ID: <6D514363CA9A4B058D16DBDAE11B628C@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0006_01CB5A39.01388C70" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6863 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.5994 Importance: Normal Thread-Index: ActZ4sML1U8M+pbGQVG+xExAkegnpQAliQ0g In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0006_01CB5A39.01388C70 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I am using the Mitsubishi 60-A; which I guess is what came with the 20B. I put on a larger size pulley to reduce the rpm. It has in internal voltage regulator, which is powered, and provides = field current, directly from the output via an internal connection. =20 =20 I use the internal regulator, but made the relatively easy mod of disconnecting the internal connection from the output so I can provide = that from an external circuit. In that circuit I have the 'crowbar' = over-voltage protection (bought from Aeroelectric Connection). It connects across the circuit breaker; and in the event of over voltage (I think at 16-16.5v) = it shorts to ground and trips the breaker. =20 Initially I found that the charging voltage was on the high side; = sometimes up to 15v. I realized that the regulator was then reading the voltage = from my external supply; which after traveling to the battery and through my circuit (battery in front, engine in back) had some drop; thus causing = it to charge to a higher voltage. Solved that by using the external circuit to power a relay close to the alternator which powers the regulator from = the output. All is well. Dave Leonard has the same setup; and same story. =20 Al=20 =20 -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of josrph berki Sent: Tuesday, September 21, 2010 3:14 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Alternator =20 Ed, =20 Thanks for the input. Did you modify it at all to remove the regulator = or provide for disabling the field? =20 Joe ----- Original Message -----=20 From: "Ed Anderson" To: "Rotary motors in aircraft" Sent: Tuesday, September 21, 2010 6:38 PM Subject: [FlyRotary] Re: Alternator =20 =20 > Joe, I still fly with the old standard Rx-7 alternator - have been = ever > since I launched in 1998 - never failed so I'm still hauling around = about 5 > lbs more weight that I need to. So can't offer you any light weight > solutions. But, there are others that have done research on light = weight > alternators whom I'm certain will offer suggestions. > > Ed > > Edward L. Anderson > Anderson Electronic Enterprises LLC > 305 Reefton Road > Weddington, NC 28104 > http://www.andersonee.com > http://www.eicommander.com > > > -------------------------------------------------- > From: "josrph berki" > Sent: Tuesday, September 21, 2010 6:21 PM > To: "Rotary motors in aircraft" > Subject: [FlyRotary] Alternator > > > What alternator is being used on the rotary? With EFI and = electronic > > ignition I would think a 60 amp would be suitable. Does anyone have = a > > light > > weight small solution? Thanks for any help. > > > > Joe Berki > > Limo EZ > > > > > > -- > > Homepage: http://www.flyrotary.com/ > > Archive and UnSub: > > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html =20 =20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_0006_01CB5A39.01388C70 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

I am using the Mitsubishi 60-A; which I guess is = what came with the 20B.

I put on a larger size pulley to reduce the = rpm.

It has in internal voltage regulator, which is = powered, and provides field current, directly from the output via an internal = connection. 

 

I use the internal regulator, but made the = relatively easy mod of disconnecting the internal connection from the output so I can = provide that from an external circuit.  In that circuit I have the = ‘crowbar’ over-voltage protection (bought from Aeroelectric Connection). It = connects across the circuit breaker; and in the event of over voltage (I think at = 16-16.5v) it shorts to ground and trips the breaker.

 

Initially I found that the charging voltage was on = the high side; sometimes up to 15v. I realized that the regulator was then = reading the voltage from my external supply; which after traveling to the = battery and through my circuit (battery in front, engine in back) had some drop; = thus causing it to charge to a higher voltage. Solved that by using the external = circuit to power a relay close to the alternator which powers the regulator from = the output.  All is well.  Dave Leonard has the same setup; and same story.

 

Al

 

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On = Behalf Of josrph berki
Sent: Tuesday, September 21, 2010 3:14 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Alternator

 

Ed,

 

Thanks for the input.  Did you modify it at all to remove the regulator = or

provide for disabling the field?

 

Joe

----- Original Message -----

From: "Ed Anderson" = <eanderson@carolina.rr.com>

To: "Rotary motors in aircraft" = <flyrotary@lancaironline.net>

Sent: Tuesday, September 21, 2010 6:38 PM

Subject: [FlyRotary] Re: Alternator

 

 

> Joe, I still fly with the old standard Rx-7 alternator - have been = ever

> since I launched in 1998 - never failed so I'm still hauling around = about

5

> lbs more weight that I need to.  So can't offer you any light = weight

> solutions.  But, there are others that have done research on light = weight

> alternators whom I'm certain will offer suggestions.

>

> Ed

>

> Edward L. Anderson

> Anderson Electronic Enterprises LLC

> 305 Reefton Road

> Weddington, NC 28104

> http://www.andersonee.com

> http://www.eicommander.com

>

>

> --------------------------------------------------

> From: "josrph berki" = <jskmberki@windstream.net>

> Sent: Tuesday, September 21, 2010 6:21 PM

> To: "Rotary motors in aircraft" = <flyrotary@lancaironline.net>

> Subject: [FlyRotary] Alternator

>

> > What alternator is being used on the rotary?  With EFI and = electronic

> > ignition I would think a 60 amp would be suitable.  Does = anyone have a

> > light

> > weight small solution?  Thanks for any help.

> >

> > Joe Berki

> > Limo EZ

> >

> >

> > --

> > Homepage:  http://www.flyrotary.com/

> > Archive and UnSub:

> > = http://mail.lancaironline.net:81/lists/flyrotary/List.html<= /p>

>

>

> --

> Homepage:  http://www.flyrotary.com/

> Archive and UnSub:

http://mail.lancaironline.net:81/lists/flyrota= ry/List.html

 

 

--

Homepage:  http://www.flyrotary.com/

Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html<= /p>

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