X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from securemail.ever-tek.com ([64.129.170.194] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3889264 for flyrotary@lancaironline.net; Sat, 17 Oct 2009 14:33:24 -0400 Received-SPF: none receiver=logan.com; client-ip=64.129.170.194; envelope-from=cbarber1@texasattorney.net Received: from fcd-mail05.FCDATA.PRIVATE ([172.16.5.24]) by FCD-MAIL03.FCDATA.PRIVATE with Microsoft SMTPSVC(6.0.3790.3959); Sat, 17 Oct 2009 13:32:46 -0500 Received: from fcd-mail05.FCDATA.PRIVATE ([4.4.5.9]) by fcd-mail05.FCDATA.PRIVATE ([4.4.5.9]) with mapi; Sat, 17 Oct 2009 13:32:45 -0500 From: Chris Barber To: Rotary motors in aircraft Date: Sat, 17 Oct 2009 13:32:42 -0500 Subject: RE: [FlyRotary] Static rpm Thread-Topic: [FlyRotary] Static rpm Thread-Index: AcpPPGDu5RgrSQ0UQGqTj9V6+UJ3NQAGue3U Message-ID: <6A3D27B02C7348499A682286EDB23105020C37A867@fcd-mail05.FCDATA.PRIVATE> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_6A3D27B02C7348499A682286EDB23105020C37A867fcdmail05FCDA_" MIME-Version: 1.0 Return-Path: cbarber1@texasattorney.net X-OriginalArrivalTime: 17 Oct 2009 18:32:46.0884 (UTC) FILETIME=[3932FE40:01CA4F58] --_000_6A3D27B02C7348499A682286EDB23105020C37A867fcdmail05FCDA_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Al, I have the IVO Magnum in flight adjustable 3 blade prop with 45 to 105 inch= pitch range. I believe it is 68 inches long, but it MAY be 66 inches. I = do not think I could go much longer as I would be concerned about clearance= issues with the ground. Ed, Of course, you hopefully are correct about the staging. I was so tickled g= etting everything else working pretty well that I didn't even think about t= he fact that is was at low idle and would not be stagging yet. I hope this= bears out once I get to the hangar later today. Yous guys are great.... All the best, Chris ________________________________ From: Rotary motors in aircraft [flyrotary@lancaironline.net] On Behalf Of = Al Gietzen [ALVentures@cox.net] Sent: Saturday, October 17, 2009 11:13 AM To: Rotary motors in aircraft Subject: [FlyRotary] Static rpm Chris; Only cuz it was mentioned....I usually do achieve about 6000 rpm static. I= am using a 2nd gen turbo block with a medium street port. I am guessin' t= he street port brings my static up a bit. This is with a 2.17 B drive from= Tracy and an Ivo in flight adjustable prop set at a fine pitch. When I go= course, it drops about 200 rpm. At some point you=92ll want to consider a larger prop or more pitch. Typic= ally your static rpm with cruise pitch should be in the neighborhood of 245= 0-2550 (so 5300 =96 5500 on the engine). As it is ,you=92ll find you can=92= t go WOT in flight without over-speeding your prop. Are you sure the IVO is= going to full pitch? I get about 5400 static, and can reach about 6300-6350 in flight. That=92s= a bit over 2900 on the Catto prop, which is speced for 3000 max. I=92d gu= ess the max on the IVO should be a bit less. Anyway, you must be generating serious power. What are the specs on your p= rop? Al G --_000_6A3D27B02C7348499A682286EDB23105020C37A867fcdmail05FCDA_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

Al,

I have the IVO Magnu= m in flight adjustable 3 blade prop with 45 to 105 inch pitch range.&n= bsp; I believe it is 68 inches long, but it MAY be 66 inches. I = do not think I could go much longer as I would be concerned about clearance issues with the ground.

Ed,=

Of = course, you hopefully are correct about the staging. I was so ti= ckled getting everything else working pretty well that I didn't even think = about the fact that is was at low idle and would not be stagging yet. I hope this bears out once I get to the hangar= later today.

Yous = ;guys are great....

All= the best,

Chr= is

From: Rotary motors in aircraft [fl= yrotary@lancaironline.net] On Behalf Of Al Gietzen [ALVentures@cox.net]
Sent: Saturday, October 17, 2009 11:13 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Static rpm

Chris;

Only cuz it was mentioned....I usually do achie= ve about 6000 rpm static. I am using a 2nd gen turbo block with a medium street port. I am guessin' the street port bring= s my static up a bit. This is with a 2.17 B drive from Tracy and an&n= bsp;Ivo in flight adjustable prop set at a fine pitch. When I go= course, it drops about 200 rpm.

At some poi= nt you=92ll want to consider a larger prop or more pitch. Typically y= our static rpm with cruise pitch should be in the neighborhood of 2450-2550 (so 5300 =96 5500 on the engine). As it is ,you= =92ll find you can=92t go WOT in flight without over-speeding your prop. Ar= e you sure the IVO is going to full pitch?

I get about= 5400 static, and can reach about 6300-6350 in flight. That=92s a bit= over 2900 on the Catto prop, which is speced for 3000 max. I=92d guess the max on the IVO should be a bit less.

Anyway, you= must be generating serious power. What are the specs on your prop?

Al G=

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