X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3682044 for flyrotary@lancaironline.net; Sun, 14 Jun 2009 08:28:04 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Received: from computername ([75.191.186.236]) by cdptpa-omta01.mail.rr.com with ESMTP id <20090614122726209.RNXU26718@cdptpa-omta01.mail.rr.com> for ; Sun, 14 Jun 2009 12:27:26 +0000 From: "Ed Anderson" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Water Temps Date: Sun, 14 Jun 2009 08:27:46 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000E_01C9ECC9.FF2C8860" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 Thread-Index: Acns6HjM4of9QAl9TdyPIXmTsvhBDAAAipbQ In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Message-Id: <20090614122726209.RNXU26718@cdptpa-omta01.mail.rr.com> This is a multi-part message in MIME format. ------=_NextPart_000_000E_01C9ECC9.FF2C8860 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Ok, John, The engine knows what it likes. However, if accurate - an A/F of 15:1 should show you a fuel flow of approx 10.5-11 GPH (at 5000 rpm WOT) producing approx 117 HP. An A/F of 12.65:1 (Best Power)under the same rpm should show a fuel flow of approx 12.5-13 GPH producing around 135-140 HP. I find that on take off on a nominal day I typically show between 17 and 18 GPH on a cold day as much as 19-20 turning 6000 rpm (with a 2.85:1 RWS redrive) Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of John Sent: Sunday, June 14, 2009 8:05 AM To: Rotary motors in aircraft Subject: [FlyRotary] Water Temps Tracy, your temperature cutoff makes me feel a little better. Yesterday I checked the crankcase and there was no sign of glycol odor or glycol. I ran the engine .2th's hour taxing trying to get used to the not having a steerable nose wheel, the brakes were considerable cooler. OAT was at 78, with cowling off and moving the WT was 165 degrees. On Ed's question of the air - fuel ratio, I have a meter and sensor from Edelbrock and with the 1:15 light on, the engine runs the best, as for the accuracy of the instrument, who knows. At one time a while back there was much discussion on prop's, the prop I have is a Fred Felix bi-cambered of 68 x 70, as I recall it was mentioned about prop stall, would I be experiencing this, as the engine will go from idle to 5,000 rpm almost instantly, sure is different than the ole Lycoming in the Piper Colt. The Marcotte re-drive has the filler plug at a level where nearly 90 % of the ring and pinion is submerged in 80 hypoid. The surplus grease was dispelled out the vent on the overflow bottle and ran down the firewall, very small amount of 80w makes awful big mess. JohnD __________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ------=_NextPart_000_000E_01C9ECC9.FF2C8860 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Ok, = John,

 

The engine knows what it = likes.  However, if accurate - an A/F of 15:1 should show you a fuel flow of approx 10.5-11 = GPH (at 5000 rpm WOT) producing approx 117 HP.  An A/F of 12.65:1 (Best = Power)under the same rpm  should show a fuel flow of approx 12.5-13 GPH producing = around 135-140 HP.

 

I find that on take off on a = nominal day I typically show between 17 and 18 GPH on a cold day as much as 19-20 = turning 6000 rpm (with a 2.85:1 RWS redrive)

 

Ed  =

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of John
Sent: Sunday, June 14, = 2009 8:05 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] = Water Temps

 

Tracy, your temperature cutoff makes me feel a little better.  Yesterday I = checked the crankcase and there was no sign of glycol odor or glycol.  I ran = the engine .2th's hour taxing trying to get used to the not having a = steerable nose wheel, the brakes were considerable cooler.  OAT was at 78, with = cowling off and moving the WT was 165 degrees.

 

On Ed's question of the air - fuel ratio, I have a = meter and sensor from Edelbrock and with the 1:15 light on, the engine runs = the best, as for the accuracy of the instrument, who = knows.

 

At one time a while back there was much discussion on prop's, the prop I have is a Fred Felix bi-cambered of 68 x 70, as I = recall it was mentioned about prop stall, would I be experiencing this, as the = engine will go from idle to 5,000 rpm almost instantly, sure is different than = the ole Lycoming in the Piper Colt.

 

The Marcotte re-drive has the filler plug at a level = where nearly 90 % of the ring and pinion is submerged in 80 hypoid.  The = surplus grease was dispelled out the vent on the overflow bottle and ran down = the firewall, very small amount of 80w makes awful big mess.  = JohnD



__________ Information from ESET NOD32 Antivirus, version of virus = signature database 3267 (20080714) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com

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