Return-Path: Received: from [216.52.245.18] (HELO ispwestemail1.aceweb.net) by logan.com (CommuniGate Pro SMTP 4.1.3) with ESMTP id 2578985 for flyrotary@lancaironline.net; Sun, 14 Sep 2003 09:23:09 -0400 Received: from 7n7z201 (unverified [208.187.45.44]) by ispwestemail1.aceweb.net (Vircom SMTPRS 2.1.258) with SMTP id for ; Sun, 14 Sep 2003 06:25:29 -0700 Message-ID: <07b501c37ac3$c60f2ac0$272dbbd0@7n7z201> From: "William" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Good news, Bad news Date: Sun, 14 Sep 2003 08:24:36 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_07AB_01C37A99.A2757EE0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 This is a multi-part message in MIME format. ------=_NextPart_000_07AB_01C37A99.A2757EE0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageIs there anyone you can borrow a 2 blade wood prop that has = successfully run on an RV-# with Tracy's redrive? That might answer a = lot of questions before you attack the Cowl. Bill Schertz ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Saturday, September 13, 2003 11:44 PM Subject: [FlyRotary] Re: Good news, Bad news Russell, Just as a sanity check, before doing anything drastic, check = your pitot static system for restrictions. If that looks good, swap in = an ASI known to be good. You could just be having instrument failure. = It's hard to imagine even the B.U.C. killing off 40 kts. or more. Rick Girard=20 Good thought, but I looked at the GPS a couple times today, and it was = always in the ballpark of the ASI. Also, the cross-check is my dismal = climb rate. My friend's 160 HP RV-3 climbs at 100 kts, and 2100 fpm. I = have 200+ HP available, and can't even get to 100 kts in climb. Best = climb rate I've seen was 1500 fpm, and I didn't see more than 1000 fpm = today. I should be looking at about 160 kts without wheel pants and = gear leg fairings, and I'm seeing only 113 kts or so. Very = depressing... The only other variable is the prop. I'm using a 3 blade Warp Drive = prop, and I'm starting to question how well it may be working. It's = certainly absorbing the power, but is it effectively turning that power = into thrust? How can I know? Anyone else running a Warp Drive on a = fast plane? I do agree that it's time to step back and make some well reasoned = observations, rather than taking a chainsaw to anything yet. For sure, = the cowl has to go eventually, but I really didn't want to have to do = that now. I've thought about replacing the radiator, and modifying the = cowl into yet another temporary shape, but that's a lot of work for = another temporary cowl. =20 Thanks, Rusty =20 ------=_NextPart_000_07AB_01C37A99.A2757EE0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Is there anyone you can borrow a 2 = blade wood prop=20 that has successfully run on an RV-# with Tracy's redrive? That might = answer a=20 lot of questions before you attack the Cowl.
Bill Schertz
----- Original Message -----
From:=20 Russell=20 Duffy
Sent: Saturday, September 13, = 2003 11:44=20 PM
Subject: [FlyRotary] Re: Good = news, Bad=20 news

Russell, Just as a sanity check, before doing anything drastic, = check=20 your pitot static system for restrictions. If that looks good, swap in = an ASI=20 known to be good. You could just be having instrument failure. It's = hard to=20 imagine even the B.U.C. killing off 40 kts. or more.

Rick = Girard 
 
Good=20 thought, but I looked at the GPS a couple times today, and it was = always in=20 the ballpark of the ASI.  Also, the cross-check is my dismal = climb=20 rate.  My friend's 160 HP RV-3 climbs at 100 kts, and 2100=20 fpm.  I have 200+ HP available, and can't even get to 100 kts in=20 climb.  Best climb rate I've seen was 1500 fpm, and I didn't see = more=20 than 1000 fpm today.  I should be looking at about 160 kts = without=20 wheel pants and gear leg fairings, and I'm seeing only 113 kts or = so. =20 Very depressing...
 
The only=20 other variable is the prop.  I'm using a 3 blade Warp Drive prop, = and I'm=20 starting to question how well it may be working.  It's certainly=20 absorbing the power, but is it effectively turning that power into=20 thrust?  How can I know?  Anyone else running a Warp Drive = on a fast=20 plane?
 
I do agree=20 that it's time to step back and make some well = reasoned observations,=20 rather than taking a chainsaw to anything yet.  For sure, the = cowl has to=20 go eventually, but I really didn't want to have to do that=20 now.  I've thought about replacing the radiator, and = modifying the=20 cowl into yet another temporary shape, but that's a lot of = work for=20 another temporary cowl.  
 
Thanks,
Rusty
   
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