Return-Path: Received: from imf23aec.mail.bellsouth.net ([205.152.59.71] verified) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 359383 for flyrotary@lancaironline.net; Tue, 10 Aug 2004 10:48:04 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.71; envelope-from=sladerj@bellsouth.net Received: from JSLADE ([209.215.55.86]) by imf23aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with ESMTP id <20040810144732.XFKM1787.imf23aec.mail.bellsouth.net@JSLADE> for ; Tue, 10 Aug 2004 10:47:32 -0400 From: "John Slade" To: "Rotary motors in aircraft" Subject: Turbos from the land of Oz Date: Tue, 10 Aug 2004 10:47:28 -0400 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0008_01C47EC7.6DF0DD30" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C47EC7.6DF0DD30 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit G'day Mick > I must say you did a good job on the turbine or what was left anyway!!!. Thank you, thank you. I try hard to please. :) Thanks for the update. It's a little scary dealing with a company so far away, but Max seems like a straight up guy so I never really had any doubt he'd come through. Just took a little longer than I'd hoped. 400HP. Yes. he mentioned that. A bit lower at my max rpm of 6300, but still - plenty of grunt. :) > From what he explained to me was that you will get more boost for a slower turbine rpm, I thought it was less boost for the same airflow. > He did mention something about throwing in a couple of peacock feathers just incase you blow it again. Oh! Nice touch. > Now im thinking of changing prop size. ( currently ivo 70" variable high pitch 3 blade ) can you make any suggestions. Well mines a wood 68 three blade with 314 blade area from Performance. It'll accelerate the plane to take off in 1000 - 1500 feet at 4300 rpm and climb quickly at 5000. It'll even climb at 2300 rpm. Should be ideal for about 280 hp in cruise and should get me a better top speed than a variable pitch. Given that you need 2000ft to land I'm not sure a variable pitch prop will buy you anything on a Cozy, and it'll probably cost you at the top end. Are you building a Cozy or an RV? I forget. Cheers, John ------=_NextPart_000_0008_01C47EC7.6DF0DD30 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

G'day=20 Mick

> I must say you did a good job on the turbine = or what was=20 left anyway!!!.

Thank you,=20 thank you. I try hard to please. :)

Thanks for the update. = It's a little=20 scary dealing with a company so far away, but Max seems like a straight = up guy=20 so I never really had any doubt he'd come through. Just took a little longer than I'd=20 hoped.

400HP. Yes.=20 he mentioned that. A bit lower at my max rpm of 6300, but still - plenty = of=20 grunt. :)

> From what he explained = to me was=20 that you will get more boost for a slower turbine rpm,

I thought it=20 was less boost for the same airflow.

> He did mention = something=20 about throwing in a couple of peacock feathers just incase you blow it=20 again.

Oh! Nice=20 touch.

> Now im thinking of = changing prop=20 size. ( currently ivo 70" variable high pitch 3 = blade ) can=20 you make any suggestions.

Well mines a=20 wood 68 three blade with 314 blade area from Performance. It'll = accelerate=20 the plane to take off in 1000 - 1500 feet at 4300 rpm and climb quickly = at 5000.=20 It'll even climb at 2300 rpm. Should be ideal for about 280 hp in cruise = and=20 should get me a better top speed than a variable pitch. Given that you = need=20 2000ft to land I'm not sure a variable pitch prop will buy you = anything on=20 a Cozy, and it'll probably cost you at the top end. Are you building a = Cozy or=20 an RV? I forget.

Cheers,

John

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