Message

X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: <13brv3@bellsouth.net> Received: from imf22aec.mail.bellsouth.net ([205.152.59.70] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 932226 for flyrotary@lancaironline.net; Wed, 04 May 2005 10:48:07 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.70; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf22aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050504144717.QVKW2058.imf22aec.mail.bellsouth.net@rd> for ; Wed, 4 May 2005 10:47:17 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: EGT temps Date: Wed, 4 May 2005 09:47:28 -0500 Message-ID: <042201c550b8$32db13f0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0423_01C5508E.4A050BF0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0423_01C5508E.4A050BF0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable So, I believe there is no such thing as "EGT too high". There is only = "peak EGT", whatever it is for your installation. =20 =20 Hi David, =20 Everything you said sounds right to me, with a note that the (NA) rotary = can run way lean of peak, and not be damaged. This is actually a neat phenomenon. You can climb to cruise altitude, and leave the throttle = wide open, then use the mixture almost as a throttle. =20 =20 I would also have to note that EGT can be too high. Mine will easily = exceed 1800 degrees, and I don't think I'd want to do that to my exhaust system very long. =20 =20 Cheers, Rusty =20 ------=_NextPart_000_0423_01C5508E.4A050BF0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

So, I believe there is no such thing as = "EGT too=20 high". There is only "peak EGT", whatever it is for your=20 installation.

Hi=20 David,

Everything=20 you said sounds right to me, with a note that the (NA) rotary can run = way lean=20 of peak, and not be damaged. This is actually a neat = phenomenon. You=20 can climb to cruise altitude, and leave the throttle wide open, then use = the=20 mixture almost as a throttle.

I would also=20 have to note that EGT can be too high. Mine will easily exceed = 1800=20 degrees, and I don't think I'd want to do that to my exhaust system very = long.

Cheers,

Rusty

------=_NextPart_000_0423_01C5508E.4A050BF0--