X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop-Diagnostic: (direct reply)\eX-PolluStop-Score: 0.00\eX-PolluStop: Scanned with Niversoft PolluStop 2.1 RC1, http://www.niversoft.com/pollustop Return-Path: Received: from rwcrmhc14.comcast.net ([216.148.227.89] verified) by logan.com (CommuniGate Pro SMTP 4.3c4) with ESMTP id 861918 for flyrotary@lancaironline.net; Fri, 08 Apr 2005 13:49:23 -0400 Received-SPF: none receiver=logan.com; client-ip=216.148.227.89; envelope-from=jesse@jessfarr.com Received: from office5 (pcp04959909pcs.midval01.tn.comcast.net[68.59.199.44]) by comcast.net (rwcrmhc14) with SMTP id <2005040817483501400lo3sde>; Fri, 8 Apr 2005 17:48:35 +0000 Message-ID: <00d401c53c63$29a03040$057ba8c0@farr.com> From: "jesse farr" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Ed Anderson Cooling System Date: Fri, 8 Apr 2005 13:48:24 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00D1_01C53C41.A2391D40" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_00D1_01C53C41.A2391D40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Fellows: Wasn't it paul loewen who took an older, big holed mooney, = lengthened cowling and totally eliminated air inlet holes and only = allowed swirl off prop hub to actually reduce his air cooled lycoming's = operating temperature ? Back in late 70s or early 80s, I believe. Did = away with all external rivet drag, all that stuff as well and it was = called 'the loewen liner' or something cute like that, iirc. jofarr, soddy tn ----- Original Message ----- From: Shearbond@aol.com=20 There were those who claimed that there was no way that would work. = Well, I reduced my inlet area from 48 sq inch to 28 and it works just = fine thank you. Tracy Crook can vouch that I have flown with the small = openings for well over a year and he has never seen steam or smoke = coming from my engine - yet {:>). Hey Ed...that was probably me! All my analysis uses Military Air = outside conditions (+40 deg F over standard conditions), are climbing at = 100 mph TAS (near max rate of climb) and assumes that you are actually = generating 200 HP. At 2,000 ASL and +40 deg F over standard....I = suspect you are not generating 200HP and if you are indeed capable of = 200 HP probably do not maintain that operating condition sufficiently = long (at 100 mph) to reach steady state conditions which my rules of = thumb consider. =20 Hopefully if you ever are approaching the trees on T/O under the more = severe conditions you can tolerate 245+ deg F engine out coolant = temperature. Been there done that with the Mooney. You know what? The = throttle stayed in WOT and no leaves on the belly! It defined "pucker" = for me. So you'll have to forgive me if I size my inlets just a little = bit larger for our 95 deg summer days. (Military Air at sea level is 99 = deg F)...WOT...generating 200 HP for an extended period!! Do what Tracy = "noodles" and spray water on the heat exchangers!! Of course you have = to carry that two gallons of water around for the inevitable situation = :>). Sort of like a "gear up...not if, but when...if one flys enough. ------=_NextPart_000_00D1_01C53C41.A2391D40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Fellows: Wasn't it paul loewen who took an older, big holed mooney, = lengthened cowling and totally eliminated air inlet holes and only = allowed=20 swirl off prop hub to actually reduce his air cooled lycoming's = operating=20 temperature ? Back in late 70s or early 80s, I believe.  Did away = with all=20 external rivet drag, all that stuff as well and it was called 'the = loewen=20 liner' or something cute like that, iirc.
jofarr, soddy tn
 
----- Original Message ----- = From: Shearbond@aol.com=20
 
There were those who claimed that there was no = way that=20 would work.  Well, I reduced my inlet area from 48 sq inch to 28 = and it=20 works just fine thank you.  Tracy Crook can vouch that I have = flown with=20 the small openings for well over a year and he has never seen steam or = smoke=20 coming from my engine - yet {:>).
 
Hey Ed...that was probably me!  All my analysis uses = Military Air=20 outside conditions (+40 deg F over standard conditions), are = climbing at=20 100 mph TAS (near max rate of climb) and assumes that you are = actually=20 generating 200 HP.  At 2,000 ASL and +40 deg F over=20 standard....I suspect you are not generating 200HP and if you are = indeed=20 capable of 200 HP probably do not maintain that operating condition=20 sufficiently long (at 100 mph) to reach steady state conditions = which my=20 rules of thumb consider. 
 
Hopefully if you ever are approaching the trees on T/O under = the=20 more severe conditions you can tolerate 245+ deg F engine out coolant=20 temperature.  Been there done that with the Mooney.  You = know=20 what?  The throttle stayed in WOT and no leaves on the = belly!  It=20 defined "pucker" for me.  So you'll have to forgive me if I size = my=20 inlets just a little bit larger for our 95 deg summer days.  = (Military=20 Air at sea level is 99 deg F)...WOT...generating 200 HP for an = extended=20 period!!  Do what Tracy "noodles" and spray water on the heat=20 exchangers!!  Of course you have to carry that two gallons of = water=20 around for the inevitable situation :>).  Sort of like a "gear = up...not if, but when...if one flys=20 enough.
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