Return-Path: Received: from grunt24.ihug.com.au ([203.109.249.144] verified) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 363178 for flyrotary@lancaironline.net; Thu, 12 Aug 2004 22:36:45 -0400 Received-SPF: none receiver=logan.com; client-ip=203.109.249.144; envelope-from=mickandfi@ihug.com.au Received: from 203-217-50-235.dyn.iinet.net.au (dinkie) [203.217.50.235] by grunt24.ihug.com.au with smtp (Exim 3.35 #1 (Debian)) id 1BvRvO-0002DP-00; Fri, 13 Aug 2004 12:36:10 +1000 Message-ID: <000d01c480de$49d88c40$eb32d9cb@dinkie> From: "Michael Haynes" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Turbos from the land of Oz Date: Fri, 13 Aug 2004 12:36:06 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000A_01C48132.1A623C50" 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_000A_01C48132.1A623C50 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hay John Dropped off my turbo yesterday and confirmed more air flow less boost! = I STAND CORRECTED. I Still don't under stand. Anyway Max has taken a lot = of interest in what we are doing and is researching more on a way to = control boost at alt. He did mention that the microtec computer that is = used down here a lot does compensate boost with alt but not sure to what = alt it goes to ( designed for driving in the hills ), also has limp home = mode. Ill find out more when I see him next. =20 Cheers Mick ----- Original Message -----=20 From: John Slade=20 To: Rotary motors in aircraft=20 Sent: Wednesday, August 11, 2004 12:47 AM Subject: [FlyRotary] Turbos from the land of Oz G'day Mick > I must say you did a good job on the turbine or what was left = anyway!!!. =20 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, =20 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. =20 Oh! Nice touch. > Now im thinking of changing prop size. ( currently ivo 70" variable = high pitch 3 blade ) can you make any suggestions. =20 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_000A_01C48132.1A623C50 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hay John
 Dropped off my turbo yesterday = and confirmed=20 more air flow less boost! I STAND CORRECTED. I Still = don't under=20 stand. Anyway Max has taken a lot of interest in what we are doing and = is=20 researching more on a way to control boost at alt. He did mention that = the=20 microtec computer that is used down here a lot does compensate boost = with alt=20 but not sure to what alt it goes to ( designed for driving in the hills = ), also=20 has limp home mode. Ill find out more when I see him=20 next.  
 Cheers
 Mick
----- Original Message -----
From:=20 John=20 Slade
Sent: Wednesday, August 11, = 2004 12:47=20 AM
Subject: [FlyRotary] Turbos = from the land=20 of Oz

G'day=20 Mick
> I must say you did a good job on the turbine = or what=20 was 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=20 was that you will get more boost for a slower turbine rpm,  
I thought=20 it 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 = again.  
Oh! Nice=20 touch.
 
 > Now im thinking of = changing=20 prop size. ( currently ivo 70" variable = high  pitch 3=20 blade ) can you make any suggestions.  
 
Well mines=20 a wood 68 three blade with 314 blade area from Performance.  = It'll=20 accelerate the plane to take off in 1000 - 1500 feet at 4300 rpm and = climb=20 quickly at 5000. It'll even climb at 2300 rpm. Should be ideal for = about 280=20 hp in cruise and should get me a better top speed than a variable = pitch. Given=20 that you need 2000ft to land I'm not sure a variable pitch prop = will buy=20 you anything on a Cozy, and it'll probably cost you at the top end. = Are you=20 building a Cozy or an RV? I forget.
 
Cheers,
John
 
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