Return-Path: <13brv3@bellsouth.net> Received: from imf16aec.mail.bellsouth.net ([205.152.59.64] verified) by logan.com (CommuniGate Pro SMTP 4.1.3) with ESMTP id 2564692 for flyrotary@lancaironline.net; Tue, 02 Sep 2003 09:24:18 -0400 Received: from rad ([68.212.14.21]) by imf16aec.mail.bellsouth.net (InterMail vM.5.01.05.27 201-253-122-126-127-20021220) with ESMTP id <20030902132416.EMPG21511.imf16aec.mail.bellsouth.net@rad> for ; Tue, 2 Sep 2003 09:24:16 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] and another one fly's.... Date: Tue, 2 Sep 2003 08:24:19 -0500 Message-ID: <002d01c37155$84597580$0201a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002E_01C3712B.9B836D80" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_002E_01C3712B.9B836D80 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I'm experiencing similar disappointment as Rusty in my climb speeds. However on the second flight we used the GPS to do a few runs to check the airspeed we found that it reads 15-20 mph slow. This meant we were climbing at too high of an airspeed. Even when we adjusted for this is was still disappointing. I feel that a big part over the problem may be that I'm over-propped. Great news Todd. Glad to hear all went reasonably well. Very nice temps too! You didn't mention the climb speed that you were using. I can verify what Ed said about fixed pitch RV speeds. My previous RV-8 had it's best climb rate between 90 and 105 kts, and just last night I talked to a local RV-3 guy who said his RV-3 climbs best around 105 kts. Why I've been using 78 kts (90 mph) is a mystery. My buddy confirmed that 78 kts would climb terribly on his plane as well, so this is more good news. For the record, he gets 2100 fpm on 160 hp, so that's the initial number to beat, and I'm betting the next flight will top that. Again, nice job. Rusty ------=_NextPart_000_002E_01C3712B.9B836D80 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
    I'm experiencing similar disappointment = as Rusty=20 in my climb speeds. However on the second flight we used the GPS to do a = few=20 runs to check the airspeed we found that it reads 15-20 mph slow. This = meant we=20 were climbing at too high of an airspeed. Even when we adjusted for this = is was=20 still disappointing. I feel that a big part over the problem may be that = I'm=20 over-propped.  
 
 
Great news = Todd.  Glad=20 to hear all went reasonably well.  Very nice temps = too!  You=20 didn't mention the climb speed that you were using.  I = can verify=20 what Ed said about fixed pitch RV speeds.  My previous RV-8 had=20 it's best climb rate between 90 and 105 kts, and just last = night I=20 talked to a local RV-3 guy who said his RV-3 climbs best around 105 = kts.  Why I've been using 78 kts (90 mph) is a mystery.  = My buddy=20 confirmed that 78 kts would climb terribly on his plane as well, so this = is more=20 good news.  For the record, he gets 2100 fpm on 160 hp, so that's = the=20 initial number to beat, and I'm betting the next flight will = top=20 that.  
 
Again, nice=20 job.  
 
Rusty 
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