Return-Path: <13brv3@bellsouth.net> Received: from imf22aec.mail.bellsouth.net ([205.152.59.70] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 761538 for flyrotary@lancaironline.net; Sun, 27 Feb 2005 11:10:52 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.70; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf22aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050227161007.NJCR2068.imf22aec.mail.bellsouth.net@rd> for ; Sun, 27 Feb 2005 11:10:07 -0500 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: EWP; was E-shaft permanent magnet alternator Date: Sun, 27 Feb 2005 10:10:46 -0600 Message-ID: <000001c51ce6$e59525e0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C51CB4.9AFAB5E0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C51CB4.9AFAB5E0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable The pump can provide much greater flow when supplied with 13.8 volts = than it can at <12 volts. =20 =20 I thought about this some more later, and realized that my ground test = was even more encouraging, since I was running a single EWP with no alt. =20 =20 I held the second EWP up to about 100 potential locations yesterday, and just can't find a good home for it. I found one spot where it might = work, if I cobble up a 90 degree AN12 fitting, but that would leave a short = hose from an engine mounted evap core, to the stationary (engine mount) = mounted pump, and I'd worry about fatiguing the evap core. =20 =20 I also thought about the fact that I'm in the process of switching to = Evan's NPG-R. Leaving the system just like it was, will show me the difference between my old coolant mixture, and the new Evan's. I'd hate to ruin = that experiment by changing something else at the same time. =20 =20 Bottom line, I'm not changing the RV-3 cooling system at this time. = Just not worth the effort for something that's working fine. If the e-shaft = alt becomes a reality, I'll try the EWP without the mechanical pump. =20 =20 Cheers, Rusty (rain really messing up my plans today) =20 ------=_NextPart_000_0001_01C51CB4.9AFAB5E0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
The pump can provide much = greater flow=20 when supplied with 13.8 volts than it can at <12 volts.  
&nbs= p;
I thought about this some more later, and = realized that my=20 ground test was even more encouraging, since I was running a single = EWP=20 with=20 no alt.  =
&nbs= p;
I held the second EWP up to = about 100=20 potential locations yesterday, and just can't find a good home for = it.  I=20 found one spot where it might work, if I cobble up a 90 degree AN12 = fitting, but that would leave a short hose from an engine mounted=20 evap core, to the stationary (engine mount) mounted pump, and = I'd=20 worry about fatiguing the evap=20 core.   <= /DIV>
 
I also thought about the fact that I'm in = the process=20 of switching to Evan's NPG-R.  Leaving the system just like it was, = will=20 show me the difference between my old coolant mixture, and the new = Evan's. =20 I'd hate to ruin that experiment by changing something=20 else at the same=20 time.  
 
Bottom line, I'm not changing the RV-3 = cooling system=20 at this time.  Just not worth the effort for something that's = working=20 fine.  If the e-shaft alt becomes a reality, I'll try = the EWP=20 without the mechanical=20 pump.  
 
Cheers,
Rusty  (rain really messing up my = plans=20 today)   =
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