X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from exhub003-1.exch003intermedia.net ([207.5.74.28] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTPS id 3884714 for flyrotary@lancaironline.net; Tue, 13 Oct 2009 14:32:01 -0400 Received-SPF: none receiver=logan.com; client-ip=207.5.74.28; envelope-from=jwhaley@datacast.com Received: from EXVMBX003-5.exch003intermedia.net ([207.5.74.45]) by exhub003-1.exch003intermedia.net ([207.5.74.28]) with mapi; Tue, 13 Oct 2009 11:31:23 -0700 From: Jeff Whaley To: Rotary motors in aircraft Date: Tue, 13 Oct 2009 11:29:29 -0700 Subject: RE: [FlyRotary] No more hot oil ... Yes! Thread-Topic: [FlyRotary] No more hot oil ... Yes! Thread-Index: AcpMARD5L0yuxPlTRa+ApEfOKkcUvQAMgkJs Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_C03ABB0A7362B84BB53D544B3C305E0E015365470A44EXVMBX0035e_" MIME-Version: 1.0 --_000_C03ABB0A7362B84BB53D544B3C305E0E015365470A44EXVMBX0035e_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Okay Kelly, but I've been operating away from the office for a few days and= will be for the remainder of the week ... I'll catch up next week. Jeff ________________________________ From: Rotary motors in aircraft [flyrotary@lancaironline.net] On Behalf Of = Kelly Troyer [keltro@att.net] Sent: Tuesday, October 13, 2009 8:30 AM To: Rotary motors in aircraft Subject: [FlyRotary] No more hot oil ... Yes! Photos Jeff !!..............Photos...........Both of your oil cooler (s) an= d the cowl spinner inlet............... -- Kelly Troyer "Dyke Delta"_13B ROTARY Engine "RWS"_RD1C/EC2/EM2 "Mistral"_Backplate/Oil Manifold -------------- Original message from Jeff Whaley : --= ------------ Finally my days of too hot oil are behind me! We flew on Thursday evening = at 17C or 62F ... oil never exceeded 150F and in cruise was actually about = 135F with the water temperature at 175F. Almost too cold, but if you add 30= degrees, to 92F the oil would be around 165F. I will add some restrictors= on the oil cooler intakes for the upcoming winter ... that I can live with= . So the second oil cooler made a big difference; unfortunately it wasn't the= only thing I did. I also reduced the size of the cowl opening behind the s= pinner and centered it better, the original opening was 9" and offset to th= e low side (remember that pressure gradient diagram) so it got reduced to 6= " and the lower edge lifted almost 3". I was so glued to the gauges infron= t of me that I forgot to turn around and glance at the manometer - I'll bet= the oil cooler differential was more than on previous flights - if true th= at would prove the spinner opening was over pressurizing the cowling - I'll= be sure to check next time. Jeff --_000_C03ABB0A7362B84BB53D544B3C305E0E015365470A44EXVMBX0035e_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Okay Ke= lly, but I've been operating away from the office for a few days and w= ill be for the remainder of the week ... I'll catch up next week.  Jef= f
From: Rotary motors in aircraft [fl= yrotary@lancaironline.net] On Behalf Of Kelly Troyer [keltro@att.net]
Sent: Tuesday, October 13, 2009 8:30 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] No more hot oil ... Yes!

Photos Jeff !!..............Photos...........Both of your oil cooler (= s) and the cowl spinner inlet...............
--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold



 
-------------- Original message from Jeff Whaley <jwhaley@datacast.com&g= t;: --------------

Finally my days of too hot oil are behind me! = ; We flew on Thursday evening at 17C or 62F ... oil never exceeded 150F and= in cruise was actually about 135F with the water temperature at 175F. Almost too cold, but if you add 30 degrees, to 92F the oil would = be around 165F.  I will add some restrictors on the oil cooler intakes= for the upcoming winter ... that I can live with.

So the second oil cooler made a big difference; unfortunatel= y it wasn't the only thing I did. I also reduced the size of the cowl = opening behind the spinner and centered it better, the original opening was 9" and offset to the low side (remem= ber that pressure gradient diagram) so it got reduced to 6" and the lo= wer edge lifted almost 3".  I was so glued to the gauges infront = of me that I forgot to turn around and glance at the manometer - I'll bet the oil cooler differential was more than on previous= flights - if true that would prove the spinner opening was over pressurizi= ng the cowling - I'll be sure to check next time.

Jeff

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