Return-Path: Received: from grunt24.ihug.com.au ([203.109.249.144] verified) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 375032 for flyrotary@lancaironline.net; Mon, 23 Aug 2004 10:55:04 -0400 Received-SPF: none receiver=logan.com; client-ip=203.109.249.144; envelope-from=mickandfi@ihug.com.au Received: from 203-217-51-199.dyn.iinet.net.au (dinkie) [203.217.51.199] by grunt24.ihug.com.au with smtp (Exim 3.35 #1 (Debian)) id 1BzGDQ-0004x9-00; Tue, 24 Aug 2004 00:54:32 +1000 Message-ID: <000601c48921$19c20bd0$c733d9cb@dinkie> From: "Michael Haynes" To: "Rotary motors in aircraft" Subject: flyrotary inlet ducting question Date: Tue, 24 Aug 2004 00:54:31 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0003_01C48974.EA9213B0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 This is a multi-part message in MIME format. ------=_NextPart_000_0003_01C48974.EA9213B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi All I Have a question for those who are running turbos. Today I had 3 phone = calls from Max at ATS down here inregards to inlet position. He has an = idea about the overspeed at altitude. Since I wont be flying for some = time I thought you guys might like to hear it.=20 Basically what he told me was that as we gain altitude the air gets = thinner ( we all know that ) and therefore the compressor has less = resistance and over speeds. anyway he has suggested to have a separate = intake scoop for the turbo . And that way increase the pressure to the = turbo inlet. Could those that are, or have run a turbo tell me weather or not you = used air from inside the cowl or fresh air via a scoop for the feed to = the turbo. Ill pass the info onto Max, he said he's been staying up at = night thinking about it and really wants to help. The only other fix he has talked about is going to a roller bearing = turbo that is rated to 200,000 RPM . standard is I think he said = 120,000 RPM. =20 HAY JOHN i think I might get him to sponsor my plane . endless supply = of turbos :) Cheers Mick=20 ------=_NextPart_000_0003_01C48974.EA9213B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi All

I Have a question for those who = are running=20 turbos. Today I had 3 phone calls from Max at ATS down here inregards to = inlet=20 position. He has an idea about the overspeed at altitude. = Since I wont=20 be flying for some time I thought you guys might like to hear it. =

Basically what he told me was = that as we gain=20 altitude the air gets thinner ( we all know that ) and therefore the = compressor=20 has less resistance and over speeds. anyway he has suggested to have=20 a separate intake scoop for the turbo . And that way increase = the=20 pressure to the turbo inlet.

Could those that are, or have run = a turbo=20 tell me weather or not you used air from inside the cowl or fresh = air via a=20 scoop for the feed to the turbo. Ill pass the info onto = Max, he said=20 he's been staying up at night thinking about it and really wants to=20 help.

The only other fix he has talked = about is=20 going to a roller bearing turbo that is rated to 200,000 RPM . = standard is=20 I think he said 120,000 RPM.

HAY JOHN i think I might = get him to=20 sponsor my plane . endless supply of turbos :)

Cheers

Mick

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