Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 359946 for flyrotary@lancaironline.net; Tue, 10 Aug 2004 14:20:57 -0400 Received-SPF: none receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from EDWARD (cpe-069-132-183-211.carolina.rr.com [69.132.183.211]) by ms-smtp-03-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id i7AIKNiB019157 for ; Tue, 10 Aug 2004 14:20:24 -0400 (EDT) Message-ID: <002001c47f06$b8c07b10$2402a8c0@EDWARD> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Better hurry Ed Date: Tue, 10 Aug 2004 14:20:31 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001D_01C47EE5.315DD4E0" 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 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_001D_01C47EE5.315DD4E0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable MessageHi Yvon Had not heard from you in so long, I was afraid you were no longer a = Rotary Flier.=20 Ref Monster Prop. Most of us flying RV series aircraft have been using = a propeller that was around 68" in diameter and 72" in pitch or 68x72. = When Tracy Crook changed his gear box ratio from 2.17:1 to 2.85:1 the = torque at the prop end of the gear box was considerably increase but = turned slower. Tracy figured that turning slower meant a larger = diameter prop was necessary to provide the same thrust and then he = decided that with that much more of a torque increase he could also have = more pitch. Therefore, he went from a 68x72 prop to a 74x88 prop, I am = going to try a 76x88 or a propeller that is 8" longer than my previous = propeller and with 16" more pitch. Therefore the reference to a Monster = (LARGE) propeller. =20 Tracy reports tremendous increase in take off acceleration and climb. = He reported still having 1600 fpm climb at 10,000MSL!. If I can get = 2000 fpm at sea level, I'll be happy with it. =20 So several of us decided to following in his foot steps. Good to hear from you. How are things going?? Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ----- Original Message -----=20 From: g=E9raldine berger-yvon cournoyer=20 To: Rotary motors in aircraft=20 Sent: Tuesday, August 10, 2004 11:29 AM Subject: [FlyRotary] Re: Better hurry Ed Gentlemen, What is a monster prop, please? Yvon ----- Message d'origine -----=20 De : Ed Anderson=20 =C0 : Rotary motors in aircraft=20 Envoy=E9 : 10 ao=FBt 04 09:32 Objet : [FlyRotary] Re: Better hurry Ed Great to hear, Rusty. Looks like the 2.85 is going to get some = additional data point soon. Well, Laura, shipped my drive Friday, so should be here today or = tomorrow. Already have the monster prop, now awaiting a new spinner for = prop. Cleaning up my software for the EFI fuel monitor, finished the = self-calibration routine and now need to find an LCD small enough to fit = in a 2 1/4" instrument case and still readable from across the cockpit. Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Tuesday, August 10, 2004 12:41 AM Subject: [FlyRotary] Better hurry Ed I just got the tracking number for my monster prop today, and it = should be here Friday. Tracy's shipping my C drive tomorrow, and he = shipped the software updates today. Won't be long now :-) Rusty ------=_NextPart_000_001D_01C47EE5.315DD4E0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Message
Hi Yvon
 
    Had not heard from = you in so=20 long, I was afraid you were no longer a Rotary Flier.
 
Ref Monster Prop.  Most of us = flying RV series=20 aircraft have been using a propeller that was around 68" in diameter and = 72" in=20 pitch or 68x72.  When Tracy Crook changed his gear box ratio from = 2.17:1 to=20 2.85:1 the torque at the prop end of the gear box was considerably = increase but=20 turned slower.  Tracy figured that turning slower meant a larger = diameter=20 prop was necessary to provide the same thrust and then he decided that = with that=20 much more of a torque increase he could also have more pitch.  = Therefore,=20 he went from a 68x72 prop to a 74x88 prop, I am going to try a 76x88 or = a=20 propeller that is 8" longer than my previous propeller and with 16" more = pitch.  Therefore the reference to a Monster (LARGE) = propeller. =20
 
Tracy reports tremendous increase in = take off=20 acceleration and climb.  He reported still having 1600 fpm climb at = 10,000MSL!.  If I can get 2000 fpm at sea level, I'll be happy with = it. 
 
So several of us decided to following = in his foot=20 steps.
 
Good to hear from you.  How are = things=20 going??
 
Ed
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message -----
From:=20 g=E9raldine=20 berger-yvon cournoyer
Sent: Tuesday, August 10, 2004 = 11:29=20 AM
Subject: [FlyRotary] Re: Better = hurry=20 Ed

Gentlemen, What is a monster prop, = please?
Yvon
----- Message d'origine -----
De=20 : Ed Anderson
=C0 : Rotary motors in = aircraft=20
Envoy=E9 : 10 ao=FBt 04 = 09:32
Objet : [FlyRotary] Re: = Better hurry=20 Ed

Great to hear, Rusty.  Looks = like the 2.85=20 is going to get some additional data point soon.
 
Well, Laura, shipped my drive = Friday, so should=20 be here today or tomorrow.  Already have the monster prop, now = awaiting=20 a new spinner for prop.  Cleaning up my software for the EFI = fuel=20 monitor, finished the self-calibration routine and now need to find = an LCD=20 small enough to fit in a 2 1/4" instrument case and still readable = from=20 across the cockpit.
 
Ed
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, = NC
----- Original Message ----- =
From:=20 Russell=20 Duffy
To: Rotary motors in = aircraft=20
Sent: Tuesday, August 10, = 2004 12:41=20 AM
Subject: [FlyRotary] Better = hurry=20 Ed

I just = got the=20 tracking number for my monster prop today, and it should be here=20 Friday.  Tracy's shipping my C drive tomorrow, and he shipped = the=20 software updates today.  Won't be long now = :-)
 
Rusty
 
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