X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.101] (HELO ms-smtp-02-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 5.0.7) with ESMTP id 964301 for flyrotary@lancaironline.net; Wed, 01 Feb 2006 20:41:05 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.101; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-025-165.carolina.res.rr.com [24.74.25.165]) by ms-smtp-02-eri0.southeast.rr.com (8.13.4/8.13.4) with SMTP id k121eICG009535 for ; Wed, 1 Feb 2006 20:40:20 -0500 (EST) Message-ID: <001d01c62799$a42a8f50$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Suitability of NPG for Rotary Engine use Date: Wed, 1 Feb 2006 20:40:25 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001A_01C6276F.BB0CF700" 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 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_001A_01C6276F.BB0CF700 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable You are right, Jesse - no conflict here. If both a reciprocating engine = ( which is normally a iron block(or steel sleeve inserts) with an = aluminum piston) and a rotary loose coolant, my bet is the iron block = will at some point seize from overheating. Because the aluminum piston = will expand faster than the iron/steel due to the heat. Just the = opposite with a rotary (as at least two/three folks have proven), the = aluminum housing expands (and some compression/power is lost) faster = than the iron rotor - so no seizing even though the engine is cooked. =20 Never said you wouldn't damage a rotary with a loss of coolant, just = that it would keep running as long as then engine had fire and fuel. = Landing with a damaged engine with some power available beats dead = sticking in a seized engine in my opinion. Ed ----- Original Message -----=20 From: jesse farr=20 To: Rotary motors in aircraft=20 Sent: Wednesday, February 01, 2006 8:03 PM Subject: [FlyRotary] Re: Suitability of NPG for Rotary Engine use Now wait a minute there Ed. I thought that was supposed to be one of = the rotary good points, not as likely for seizure when/if coolant loss, = etc.. jofarr, soddy tn ----- Original Message -----=20 From: Ed Anderson=20 other engines (like the Subaru) that can stand higher metal = temperatures, NPG would seem more attractive. ------=_NextPart_000_001A_01C6276F.BB0CF700 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
You are right, Jesse - no conflict here.  = If both a=20 reciprocating engine ( which is normally a iron block(or steel = sleeve=20 inserts) with an aluminum piston) and a rotary loose coolant, my bet is = the iron=20 block will at some point seize from overheating.  Because the = aluminum=20 piston will expand faster than the iron/steel due to the heat.  = Just the=20 opposite with a rotary (as at least two/three folks have proven), the = aluminum=20 housing expands (and some compression/power is lost) faster than the = iron rotor=20 - so no seizing even though the engine is cooked.   =
 
Never said you wouldn't damage a rotary with a = loss of=20 coolant, just that it would keep running as long as then engine = had fire=20 and fuel.  Landing with a damaged engine with some power available = beats=20 dead sticking in a seized engine in my opinion.
 
Ed
----- Original Message -----
From:=20 jesse = farr=20
Sent: Wednesday, February 01, = 2006 8:03=20 PM
Subject: [FlyRotary] Re: = Suitability of=20 NPG for Rotary Engine use

Now wait a minute there Ed. I thought = that was=20 supposed to be one of the rotary good points, not as likely = for seizure=20 when/if coolant loss, etc..
jofarr, soddy tn
 
----- Original Message -----
From:=20 Ed Anderson
 
other engines = (like the=20 Subaru) that can stand higher metal temperatures, NPG would seem = more=20 attractive.
 
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