Return-Path: <13brv3@bellsouth.net> Received: from imf20aec.mail.bellsouth.net ([205.152.59.68] verified) by logan.com (CommuniGate Pro SMTP 4.2.1) with ESMTP id 401295 for flyrotary@lancaironline.net; Tue, 07 Sep 2004 17:57:20 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.68; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf20aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20040907215653.WCNA11436.imf20aec.mail.bellsouth.net@rd> for ; Tue, 7 Sep 2004 17:56:53 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: high oil pressure and coolers Date: Tue, 7 Sep 2004 16:56:59 -0500 Message-ID: <000001c49525$99d6b450$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C494FB.B100AC50" 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 V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C494FB.B100AC50 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I'm told by Leon that REW (3rd gen) engines are designed to run at around 205 - 210F. He advised not taking the engine above 240 except for short duration, and that oil temps should never regularly go over 250. 266 would be his limit on a really hot day, and only for a short time. I certainly value Leon's opinion, but Bruce said not to go over 210, and that's the advice I'll have to follow. Rest assured, he said it will certainly run OK hotter, but the engine life will be significantly shortened. Better to fix the cooling problems I think. Didn't a rotary airplane have two (count 'em) engine fires because of burst aftermarket oil coolers. If memory serves the owners wife made him sell the rotary and install a Lycoming. And if I'm not mistaken, both were in the initial climb, right where Bruce said you'd likely see the highest pressure. Sticking with a stock cooler seems safest. Yes, and I have a 2nd gen, but didn't think it would work well enough for the power I'm making now. Hmmm, isn't Tracy using one of these? Lot's to reconsider. John (ready to fly. Injectors won't fire). Please don't say fire :-) Rusty (where did I put that Nomex suit) ------=_NextPart_000_0001_01C494FB.B100AC50 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

I'm told by Leon that REW (3rd gen) engines are designed = to run at=20 around 205 - 210F. He advised not taking the engine above 240 = except for=20 short duration, and that oil temps should never regularly go over=20 250.  266 would be his limit on a really hot day, and only for = a=20 short time. 

 

 

I = certainly value=20 Leon's opinion, but Bruce said not to go over 210, and that's = the=20 advice I'll have to follow.    Rest assured, he said it = will=20 certainly run OK hotter, but the engine life will be significantly=20 shortened.   Better to fix the cooling problems I think.  =    

 

Didn't a rotary airplane have two (count 'em) = engine fires=20 because of burst aftermarket oil coolers. If memory serves the = owners wife=20 made him sell the rotary and install a Lycoming.  

 

And if I'm not mistaken, both were in the initial climb, = right where=20 Bruce said you'd likely see the highest=20 pressure.  

 

<= /DIV>
Sticking with a stock cooler seems = safest.  
&nbs= p;
Yes, and I have a 2nd gen, but didn't = think it would=20 work well enough for the power I'm making now.  Hmmm, isn't Tracy = using one=20 of these?   Lot's to=20 reconsider. 
 
John (ready to fly. = Injectors won't=20 fire).  
&nbs= p;
Please don't say fire=20 :-)
&nbs= p;
Rusty (where did I put that Nomex=20 suit) 
 
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