X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop-Diagnostic: (direct reply)\eX-PolluStop-Score: 0.00\eX-PolluStop: Scanned with Niversoft PolluStop 2.1 RC1, http://www.niversoft.com/pollustop Return-Path: Received: from imf17aec.mail.bellsouth.net ([205.152.59.65] verified) by logan.com (CommuniGate Pro SMTP 4.3c4) with ESMTP id 864363 for flyrotary@lancaironline.net; Sun, 10 Apr 2005 20:29:56 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.65; envelope-from=sqpilot@bellsouth.net Received: from paul52u7f5qyav ([209.214.44.228]) by imf17aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with SMTP id <20050411002911.HYLF4997.imf17aec.mail.bellsouth.net@paul52u7f5qyav> for ; Sun, 10 Apr 2005 20:29:11 -0400 Message-ID: <001501c53e2d$743cf6d0$e42cd6d1@paul52u7f5qyav> From: "Paul" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: SQ2000 flying again Date: Sun, 10 Apr 2005 19:28:58 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0012_01C53E03.8A99DAD0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0012_01C53E03.8A99DAD0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks, Ed....my water temps would actually decrease during a climb = prior to installing the ram air scoop. Now they do not. Ram air scoop = has to go. I am going to install a NACA scoop on the bottom of the = winglet, with 3 inch sceet tubing going to the plenum I will make for = the throttlebody. Incoming air will only be able to go to the = throttlebody, not the low pressure area of the cowling. My present = temps are marginally acceptable. I prefer the temps I had before the ram = air scoop (at the same throttle settings/rpm's). Sorry you can't make = it to Sun-N-Fun. Paul Conner ----- Original Message -----=20 From: Ed Anderson=20 To: Rotary motors in aircraft=20 Sent: Sunday, April 10, 2005 7:04 AM Subject: [FlyRotary] Re: SQ2000 flying again Paul, Far from discouraging, I think your temps are quite reasonable for the = regime of flight you are in. If you don't heat up a bit during climb, = then for sure you have more cooling capacity than needed at cruise - = which is not necessarily bad except from a drag standpoint. The sleeker = the aircraft the higher percentage of total drag the cooling drag is. = My coolant is red-lined at 220F (and I have exceeded that all the way up = to 240F), my oil is redlined at 210F and thus far I have not exceeded = that limit. John is correct as well, more power will produce more heat - so again = something to cheer about. Sealing off even small leaks will help considerably - that is one = reason I went with the fiberglass ducts total enclosing my radiator face = and nowhere for the air to go but through the core. In Any case, sounds like things are progressing nicely to me. Ed A ----- Original Message -----=20 From: Paul=20 To: Rotary motors in aircraft=20 Sent: Sunday, April 10, 2005 1:33 AM Subject: [FlyRotary] SQ2000 flying again I flew the SQ2000 today. The engine is running great, now that I = have a seperate water temp sender for the ECU and another for the engine = monitor. The outside air temp was 80 degrees, and I am very disappointed = with my coolant temps. The water temp hit 205 during the climb. Temps = slowly came back down to 190 once I was in level flight, and dropped to = 170 on short final. Very disappointing. (oil temps were fine). I am = going to seal all the gaps around the radiator first, and see if that = helps. I am concerned that the new ram air scoop I made to bring in = cool air to the throttlebody might be pressurizing the rear of the = cowling, and inhibiting the induction of air through the radiator. I = will try sealing around the radiator first. If that fails to bring the = temps down, I will try removing the ram air scoop and installing a NACA = scoop with a hose to bring air directly to the throttlebody, and not = dump it into the low pressure area of the cowling. If that fails, I = think I will take up fishing or golf. Paul Conner, 13b powered SQ2000 in Mobile, AL -------------------------------------------------------------------------= ----- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.9.5 - Release Date: 4/7/2005 ------=_NextPart_000_0012_01C53E03.8A99DAD0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Thanks, Ed....my water temps would = actually=20 decrease during a climb prior to installing the ram air scoop. Now they = do=20 not.  Ram air scoop has to go.  I am going to install a NACA = scoop on=20 the bottom of the winglet, with 3 inch sceet tubing going to the plenum = I will=20 make for the throttlebody. Incoming air will only be able to go to the=20 throttlebody, not the low pressure area of the cowling.  My present = temps=20 are marginally acceptable. I prefer the temps I had before the ram air = scoop (at=20 the same throttle settings/rpm's).  Sorry you can't make it to=20 Sun-N-Fun.  Paul Conner
----- Original Message -----
From:=20 Ed=20 Anderson
Sent: Sunday, April 10, 2005 = 7:04=20 AM
Subject: [FlyRotary] Re: SQ2000 = flying=20 again

Paul,
 
Far from discouraging, I think your = temps are=20 quite reasonable for the regime of flight you are in.  If you = don't heat=20 up a bit during climb, then for sure you have more cooling capacity = than=20 needed at cruise - which is not necessarily bad except from a drag=20 standpoint.  The sleeker the aircraft the higher percentage of = total drag=20 the cooling drag is.   My coolant is red-lined at 220F (and = I have=20 exceeded that all the way up to 240F), my oil is redlined at 210F and = thus far=20 I have not exceeded that limit.
 
John is correct as well, more power = will produce=20 more heat - so again something to cheer about.
 
Sealing off even small leaks will = help=20 considerably - that is one reason I went with the fiberglass ducts = total=20 enclosing my radiator face and nowhere for the air to go but through = the=20 core.
 
In Any case, sounds like things are = progressing=20 nicely to me.
 
Ed A
----- Original Message -----
From:=20 Paul=20
To: Rotary motors in = aircraft=20
Sent: Sunday, April 10, 2005 = 1:33=20 AM
Subject: [FlyRotary] SQ2000 = flying=20 again

I flew the SQ2000 today. The engine = is running=20 great, now that I have a seperate water temp sender for the ECU and = another=20 for the engine monitor. The outside air temp was 80 degrees, and I = am very=20 disappointed with my coolant temps. The water temp hit 205 during = the=20 climb.  Temps slowly came back down to 190 once I was in level = flight,=20 and dropped to 170 on short final. Very disappointing. (oil = temps were=20 fine).  I am going to seal all the gaps around the radiator = first, and=20 see if that helps.  I am concerned that the new ram air scoop I = made to=20 bring in cool air to the throttlebody might be pressurizing the rear = of the=20 cowling, and inhibiting the induction of air through the radiator. I = will=20 try sealing around the radiator first. If that fails to bring the = temps=20 down, I will try removing the ram air scoop and installing a NACA = scoop with=20 a hose to bring air directly to the throttlebody, and not dump it = into the=20 low pressure area of the cowling.  If that fails, I think I = will take=20 up fishing or golf.
     Paul = Conner, 13b=20 powered SQ2000 in Mobile, AL

No virus found in this incoming message.
Checked by AVG=20 Anti-Virus.
Version: 7.0.308 / Virus Database: 266.9.5 - Release = Date:=20 4/7/2005
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