X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imf20aec.mail.bellsouth.net ([205.152.59.68] verified) by logan.com (CommuniGate Pro SMTP 5.0) with ESMTP id 813178 for flyrotary@lancaironline.net; Thu, 03 Nov 2005 06:59:58 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.68; envelope-from=atlasyts@bellsouth.net Received: from ibm62aec.bellsouth.net ([65.10.42.138]) by imf20aec.mail.bellsouth.net with ESMTP id <20051103115912.HRJE4896.imf20aec.mail.bellsouth.net@ibm62aec.bellsouth.net> for ; Thu, 3 Nov 2005 06:59:12 -0500 Received: from [192.168.0.219] (really [65.10.42.138]) by ibm62aec.bellsouth.net with ESMTP id <20051103115911.QLZH6436.ibm62aec.bellsouth.net@[192.168.0.219]> for ; Thu, 3 Nov 2005 06:59:11 -0500 Mime-Version: 1.0 (Apple Message framework v734) In-Reply-To: References: Content-Type: multipart/alternative; boundary=Apple-Mail-9-240621860 Message-Id: From: Bulent Aliev Subject: Re: [FlyRotary] Another Run - with Questions Date: Thu, 3 Nov 2005 06:59:20 -0500 To: "Rotary motors in aircraft" X-Mailer: Apple Mail (2.734) --Apple-Mail-9-240621860 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=WINDOWS-1252; delsp=yes; format=flowed It looks good to me Joe. I think your EGT is not calibrated. My =20 probes are the same distance like yours, but my readings are around =20 1300f at these RPM. Buly On Nov 3, 2005, at 1:47 AM, Joe Hull wrote: > I ran the engine for an hour straight tonight. It seemed to run =20 > well but I do have a couple of questions that maybe this esteemed =20 > group can comment on. > > > > Engine starts out at about 1300RPM at idle when cold and Oil PSI =20 > briefly is 81PSI and then drops to 65 or so after 15-20 seconds. =20 > Then as things warm up the RPM=92s increase and oil pressure drops. =20= > RPM levels out at about 1550 and oil pressure hovers around 30PSI. =20= > Is 30PSI an OK oil pressure level at that RPM? I did increase the =20 > RPM briefly toward the end of the hour and oil pressure did go up. =20 > At 1900-2000 RPM oil pressure was around 50PSI. > At the 1550 RPM the MicroTech says manifold pressure is 9-10Hg =20 > (18-20PSI). Does that sound reasonable? > EGT=92s are 2000-2050F. Seems a tad high to me!! My EGT probes are =20= > located about 2.5=94 from the rotor housing. When I shut it down my =20= > exhaust manifold/muffler was a very nice glowing red. It=92s made =20 > out of Inconel and is .06 thick so it seems to hold up pretty =20 > well. But if it=92s like this at 1600RPM what=92s it going to be at =20= > 5800RPM?? > > > Cooling seems to be OK at the moment. When ever it gets to 212F =20 > I=92ve got the MicroTech setup to turn on my radiator fan and it =20 > immediately heads down and goes to 180F in 1-2 minutes. Oil temps =20 > never got above 150F. But we are in Washington and the air temp =20 > was between 45F and 50F so I=92m sure that helped. > > > > Thanx (rethinking fuel return and heater hoses) > > Joe Hull > > Redmond (Seattle), Washington > > Cozy MkIV #991 (working on Engine & Electrical & Finishing) > > http://www.maddyhome.com/canardpages/pages/JoeHull/index.html > > > > --Apple-Mail-9-240621860 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=WINDOWS-1252 It looks good to me Joe. I think = your EGT is not calibrated. My probes are the same distance like yours, = but my readings are around 1300f at these RPM.
Buly
On = Nov 3, 2005, at 1:47 AM, Joe Hull wrote:

I ran the engine = for an hour straight tonight. It seemed to run well but I do have a = couple of questions that maybe this esteemed group can comment = on.=A0

  1. Engine starts out at about 1300RPM at idle when = cold and Oil PSI briefly is 81PSI and then drops to 65 or so after 15-20 = seconds. Then as things warm up the RPM=92s increase and oil = pressure drops.=A0 = RPM levels out at about 1550 and oil = pressure hovers around 30PSI.=A0 Is 30PSI an OK oil = pressure level at that RPM?=A0 I did increase the = RPM briefly toward the end of the hour and oil pressure did go up. At = 1900-2000 RPM oil pressure was around 50PSI.At the 1550 RPM the MicroTech says manifold pressure is 9-10Hg (18-20PSI).=A0 Does that sound = reasonable?
  2. are 2000-2050F.=A0 Seems a tad high = to me!!=A0 = My EGT probes are located about 2.5=94 = from the rotor housing.=A0 When I shut it down = my exhaust manifold/muffler was a very nice glowing red.=A0 It=92s made out of = and is .06 thick = so it seems to hold up pretty well. =A0But if it=92s like = this at 1600RPM what=92s it going to be at 5800RPM??=A0

    Cooling seems to be OK at the = moment.=A0 = When ever it gets to 212F I=92ve got the = setup to turn on = my radiator fan and it immediately heads down and goes to 180F in 1-2 = minutes.Oil temps never got above = 150F.=A0 = But we are in Washington and the air temp = was between 45F and 50F so I=92m sure that helped.=A0

    (rethinking fuel return and heater = hoses)Joe HullRedmond (Seattle), WashingtonCozy MkIV #991 (working on Engine & Electrical & = Finishing)


= --Apple-Mail-9-240621860--