X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao12.cox.net ([68.230.241.27] verified) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1111955 for flyrotary@lancaironline.net; Sat, 13 May 2006 12:39:14 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.27; envelope-from=ALVentures@cox.net Received: from BigAl ([72.192.132.90]) by fed1rmmtao12.cox.net (InterMail vM.6.01.06.01 201-2131-130-101-20060113) with ESMTP id <20060513163819.OOSG27919.fed1rmmtao12.cox.net@BigAl> for ; Sat, 13 May 2006 12:38:19 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: Cooling on the ground Date: Sat, 13 May 2006 09:38:35 -0700 Message-ID: <000d01c676ab$adc67ef0$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000E_01C67671.0167A6F0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 In-reply-to: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_000E_01C67671.0167A6F0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable =20 Chris and I are using a pair of Honda Goldwing radiators (1200 cc engine sized radiators). They have their own fans attached, covering about = 40-50% of the core area, and the motors appear to be reversible. We are not = sure IF we will need them, but we are making the install with room for them to = be there. Dave =20 I've allowed room for an aux cooling fan on the back side of the in-cowl radiator, and had planned on installing that until I found better than expected cooling just from the prop extracting flow from the cowl. I = had not expected to need help with the smaller cooling load of the oil. I = had also expected more 'coupling' between oil temp and coolant temp; but it seems there is little; i.e., keeping the coolant temp down does little = to keep oil temp down. It seems I may need to install the fan, and figure = some way to help oil cooling on the ground, water spray currently seeming the simplest. I expect to experiment with water spray in a few days. =20 BTW; David, I expect you and Chris to join me in making the presentation = on the rotary engine for the Velocity symposium next weekend. You will be there, right? E-mail me at alg3@cox.net. =20 Al -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ ------=_NextPart_000_000E_01C67671.0167A6F0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Chris and I = are using a pair of Honda Goldwing radiators (1200 cc engine sized radiators). They = have their own fans attached, covering about 40-50% of the core area, and the = motors appear to be reversible. We are not sure IF we will need them, but we = are making the install with room for them to be there.

Dave

I’ve allowed room for an = aux cooling fan on the back side of the in-cowl radiator, and had planned on installing that until I found better than expected cooling just from the = prop extracting flow from the cowl. I had not expected to need help = with the smaller cooling load of the oil. I had also expected more = ‘coupling’ between oil temp and coolant temp; but it seems there is little; i.e., = keeping the coolant temp down does little to keep oil temp down. It seems I = may need to install the fan, and figure some way to help oil cooling on the = ground, water spray currently seeming the simplest. I expect to experiment = with water spray in a few days.

BTW; David, I expect you and = Chris to join me in making the presentation on the rotary engine for the Velocity = symposium next weekend. You will be there, right? E-mail me at alg3@cox.net.

Al

--

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

Archive and UnSub:   http://mail.lancaironline.net/lists/flyrotary/

------=_NextPart_000_000E_01C67671.0167A6F0--