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 [65.54.169.53] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.3c4) with ESMTP id 864415 for flyrotary@lancaironline.net; Sun, 10 Apr 2005 21:33:17 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.54.169.53; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sun, 10 Apr 2005 18:32:32 -0700 Message-ID: Received: from 65.54.155.41 by BAY3-DAV23.phx.gbl with DAV; Mon, 11 Apr 2005 01:32:32 +0000 X-Originating-IP: [65.54.155.41] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: SQ2000 flying again Date: Mon, 11 Apr 2005 21:34:31 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003F_01C53EDE.3FA3AC00" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 Seal-Send-Time: Mon, 11 Apr 2005 21:34:32 -0400 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 X-OriginalArrivalTime: 11 Apr 2005 01:32:32.0327 (UTC) FILETIME=[54E35D70:01C53E36] This is a multi-part message in MIME format. ------=_NextPart_000_003F_01C53EDE.3FA3AC00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable You have exactly described the first intake scheme I tried on the = Renesis (NACA, Scat tube, etc). Hope it works better for you than it = did for me.=20 Tracy (following the various sagas from SnF) Hi, Kelly...mostly due to the ram air scoop's location. The intake = plenum would be very difficult to construct to end up at the very large = ram air intake scoop. Much easier to seal it off and install either a = NACA or a ram air intake on the bottom of the bottom cowling extension = and just use a 3 inch hose. The NACA duct comes preformed with a 3 inch = outlet for a hose, and I just ordered an aluminum flange for a 3 inch = hose to attach to the throttlebody plenum. I can install the whole thing = in a weekend with all these pre-cabbed parts. Paul, just call me lazy, = Conner ----- Original Message -----=20 From: Kelly Troyer=20 To: Rotary motors in aircraft=20 Sent: Sunday, April 10, 2005 7:53 PM Subject: [FlyRotary] Re: SQ2000 flying again Paul, May I ask why not retain the ram air scoop and seal it to the intake plenum thereby keeping the manifold pressure increase that it gives you at speed ?? -- Kelly Troyer=20 Dyke Delta/13B/RD1C/EC2=20 -------------- Original message from "Paul" = >: --------------=20 Hi, John....the only thing you are missing is that I used to be = able to cool down in the climb. Now, at the same throttle setting, I can = not. Only addition has been the ram air scoop dumping air in the = vicinity of the throttlebody. (High pressure air being forced into a low = pressure area of the cowling). I believe that is hindering the ability = of the air to enter the NACA duct and go through the radiator. Paul = Conner ----- Original Message -----=20 From: John Slade=20 To: Rotary motors in = aircraft=20 Sent: Sunday, April 10, 2005 6:45 AM Subject: [FlyRotary] Re: SQ2000 flying again Great Paul, but what's wrong with those temps and what are your = targets? Obviously the temps are going to be a bit higher if you're = producing more power. I remember Leon saying that the most efficient = operating temp, at least for a 3rd gen REW, was around 180F. 220F was, = I'm pretty sure he said, the red line and you don't want to be there for = long. If you can cruise at 190 at, presumably, fairly low altitude then = I'd say you're about right and you'll get 180 on a high altitude cruise. Am I missing something here? John 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_003F_01C53EDE.3FA3AC00 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
You have exactly described the first intake scheme I tried on the = Renesis=20 (NACA, Scat tube, etc).  Hope it works better for you than it did = for=20 me. 
 
Tracy (following the various sagas from SnF)

Hi, Kelly...mostly due to the ram air = scoop's=20 location. The intake plenum would be very difficult to construct to = end up at=20 the very large ram air intake scoop. Much easier to seal it off and = install=20 either a NACA or a ram air intake on the bottom of the bottom cowling=20 extension and just use a 3 inch hose. The NACA duct comes preformed = with a 3=20 inch outlet for a hose, and I just ordered an aluminum flange for a 3 = inch=20 hose to attach to the throttlebody plenum. I can install the = whole thing=20 in a weekend with all these pre-cabbed parts. Paul, just call me lazy, = Conner
 
----- Original Message -----
From:=20 Kelly Troyer=20
To: Rotary motors in = aircraft=20
Sent: Sunday, April 10, 2005 = 7:53=20 PM
Subject: [FlyRotary] Re: = SQ2000 flying=20 again

Paul,
   May I ask why not retain the ram air scoop and = seal it to=20 the
intake plenum thereby keeping the manifold pressure = increase
that it gives you at speed ??
--
Kelly Troyer
Dyke=20 Delta/13B/RD1C/EC2




--------------=20 Original message from "Paul" <sqpilot@bellsouth.net>:=20 --------------

Hi, John....the only thing you = are missing is=20 that I used to be able to cool down in the climb. Now, at the same = throttle setting, I can not. Only addition has been the ram air = scoop=20 dumping air in the vicinity of the throttlebody. (High pressure = air being=20 forced into a low pressure area of the cowling). I believe that is = hindering the ability of the air to enter the NACA duct and go = through the=20 radiator.  Paul Conner
 
----- Original Message ----- =
From:=20 John Slade
To: Rotary motors in = aircraft=20
Sent: Sunday, April 10, = 2005 6:45=20 AM
Subject: [FlyRotary] Re: = SQ2000=20 flying again

Great Paul, but what's wrong with those temps and what = are your=20 targets? Obviously the temps are going to be a bit higher if = you're=20 producing more power. I remember Leon saying = that the most=20 efficient operating temp, at least for a 3rd gen REW, was around = 180F.  220F was, I'm pretty sure he said, the red line and = you=20 don't want to be there for long. If you=20 can cruise at 190 at, presumably, fairly low altitude then I'd = say=20 you're about right and you'll get 180 on a high altitude=20 cruise.
Am I missing something here?
John
 
 I flew the SQ2000 today. = The=20 engine is running great, now that I have a seperate water temp = sender=20 for the ECU and another for the engine monitor. The outside air = temp was=20 80 degrees, and I am very disappointed with my coolant temps. = The water=20 temp hit 205 during the climb.  Temps slowly came back down = to 190=20 once I was in level flight, and dropped to 170 on short final. = Very=20 disappointing. (oil temps were fine).  I am going to = seal all=20 the gaps around the radiator first, and see if that helps.  = I am=20 concerned that the new ram air scoop I made to bring in cool air = to the=20 throttlebody might be pressurizing the rear of the cowling, and=20 inhibiting the induction of air through the radiator. I will try = sealing=20 around the radiator first. If that fails to bring the temps = down, I will=20 try removing the ram air scoop and installing a NACA scoop with = a hose=20 to bring air directly to the throttlebody, and not dump it into = the low=20 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=20 Date: = 4/7/2005
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