Return-Path: <13brv3@bellsouth.net> Received: from imf25aec.mail.bellsouth.net ([205.152.59.73] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 3112018 for flyrotary@lancaironline.net; Sun, 21 Mar 2004 21:28:41 -0500 Received: from rad ([68.221.170.60]) by imf25aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with ESMTP id <20040322022841.XFPL17649.imf25aec.mail.bellsouth.net@rad> for ; Sun, 21 Mar 2004 21:28:41 -0500 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Cooling Ducts Date: Sun, 21 Mar 2004 20:30:45 -0600 Message-ID: <003e01c40fb5$ae256500$6001a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003F_01C40F83.638AF500" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Importance: Normal In-reply-to: This is a multi-part message in MIME format. ------=_NextPart_000_003F_01C40F83.638AF500 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Looks good Rusty but I think you were a little too conservative with the Bell curve on the ducts. They'll probably work great anyway due to external diffusion helping a lot. Finn has ZERO ducting (basically a = box with hole in front) and it works amazingly well (now that he has some = decent heat exchangers : ) =20 Tracy=20 =20 =20 Thanks, and you're correct. For one, I got sick of sanding them. = Second, the bottom of the right cooler was purposefully left flat, since I have = to mount two 1.75" flanges for TB air intake. The bottom of the right one = is a little more curved. The other big screw up was that I didn't have = enough of a flat transition at the front of the duct. Now, I'm expecting to have = to cut them off about 1/4", and that's going to lead to the pain and = suffering that I mentioned before. =20 =20 Cheers, Rusty (itchy and sneezy) =20 ------=_NextPart_000_003F_01C40F83.638AF500 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Looks good Rusty but I think you were a little too = conservative with the Bell curve on the ducts.   They'll = probably work=20 great anyway due to external diffusion helping a lot.  Finn has = ZERO=20 ducting (basically a box with hole in front) and it works amazingly well = (now=20 that he has some decent heat exchangers : )
 
Tracy 
 
 
Thanks, and you're correct.  For one, I got sick of = sanding=20 them.  Second, the bottom of the right cooler was purposefully = left=20 flat, since I have to mount two 1.75" flanges for TB air intake.  = The=20 bottom of the right one is a little more curved.  The other big = screw up=20 was that I didn't have enough of a flat transition at the = front of the=20 duct.  Now, I'm expecting to have to cut them off about 1/4",=20 and that's going to lead to the pain and suffering that I mentioned = before.  
 
Cheers,
Rusty=20 (itchy and sneezy)  
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