X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtp108.sbc.mail.re2.yahoo.com ([68.142.229.97] verified) by logan.com (CommuniGate Pro SMTP 5.2.1) with SMTP id 2831414 for flyrotary@lancaironline.net; Thu, 03 Apr 2008 21:01:40 -0400 Received: (qmail 47338 invoked from network); 4 Apr 2008 01:01:39 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=sbcglobal.net; h=Received:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=YocK/52ST6jTS7oYFkOxf9qoaTIBSRlpgJR4/lggS0ME2nhKn2PyPdKnA6ByFN5ovb1BClwg9ahw2BR4hQdDNyWJaQ2sz3tnjhe5mPRfUl+bqIOMibvtOox8f6jR5NcAJBNaBKZ8Oj4CFe4zVtpWPTkcRVxeYAuL0FNT82ubvJg= ; Received: from unknown (HELO mom) (downing.j@sbcglobal.net@75.40.227.17 with login) by smtp108.sbc.mail.re2.yahoo.com with SMTP; 4 Apr 2008 01:01:39 -0000 X-YMail-OSG: QjuZoQgVM1k8KVR4UOmXuRXvPjwsW7T1iKq7Dsjx3.9nfOIb72YtpYQ9tBT.SjaqfB1eEz9l8Epj4rdlNP_KOMHIyOs4ZVt8GD12uGgtEEvhzREh9JsbhrWSTgXO1h_JQZlF990a7ay03ss- X-Yahoo-Newman-Property: ymail-3 Message-ID: <001c01c895f0$62d86e60$4001a8c0@gateway.2wire.net> From: "John Downing" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Prop selection Date: Thu, 3 Apr 2008 20:08:25 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0019_01C895C6.79854720" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 This is a multi-part message in MIME format. ------=_NextPart_000_0019_01C895C6.79854720 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Al, the fellows that are using the Catto Prop on the Wittman Tailwind, = with 180 hp are able to get over 230 at sea level, Craig has the wood = prop really figured out. The Tailwind guys are saying the 3 blade is = smoother, but as ever one knows, it is bear to ship and doesn't seem to = help the speed any. JohnD ----- Original Message -----=20 From: Al Gietzen=20 To: Rotary motors in aircraft=20 Sent: Thursday, April 03, 2008 10:45 AM Subject: [FlyRotary] Re: Prop selection The direct bid from MT, was for $14,850, including the spinner and = some other accessories. The Craig Catto prop was for less than $3000, = and the performance figures were almost identical. The Catto prop on my Velocity 20B cost $1750 and weighs 17 lbs. = My take of roll is in line with, and my cruise burn is lower for the = same speeds as the Velocity guys that paid $10,000 more for an MT that = weigh 33 lbs more. Not to mention expensive servicing later. Puzzling. = Maybe on a hot day somewhere at high altitude I'll get a hint. Al ------=_NextPart_000_0019_01C895C6.79854720 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Al, the fellows that are using the = Catto Prop on=20 the Wittman Tailwind, with 180 hp are able to get over 230 at sea level, = Craig=20 has the wood prop really figured out.  The Tailwind guys are saying = the 3=20 blade is smoother, but as ever one knows, it is bear to ship and doesn't = seem to=20 help the speed any.  JohnD
----- Original Message -----
From:=20 Al = Gietzen=20
Sent: Thursday, April 03, 2008 = 10:45=20 AM
Subject: [FlyRotary] Re: Prop=20 selection

The=20 direct bid from MT, was for $14,850, including the spinner and = some other=20 accessories.  The Craig Catto prop was for less than $3000, and = the=20 performance figures were almost identical.

The = Catto prop=20 on my Velocity 20B = cost $1750=20 and weighs 17 lbs.  My take of roll is in line with, and my = cruise=20 burn is lower for the same = speeds as the=20 Velocity guys = that paid=20 $10,000 more for an MT that weigh 33 lbs more. Not to mention = expensive=20 servicing later. Puzzling.  Maybe on a hot day somewhere at = high=20 altitude I=92ll get a hint.

 

Al

 

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