X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost04.isp.att.net ([207.115.11.54] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2372917 for flyrotary@lancaironline.net; Sat, 06 Oct 2007 19:11:28 -0400 Received-SPF: pass receiver=logan.com; client-ip=207.115.11.54; envelope-from=bbradburry@bellsouth.net Received: from arptk8ng400 (adsl-146-123-217.mco.bellsouth.net[72.146.123.217]) by bellsouth.net (frfwmhc04) with SMTP id <20071006231050H0400fbfnde>; Sat, 6 Oct 2007 23:10:50 +0000 X-Originating-IP: [72.146.123.217] From: "Bill Bradburry" To: "'Rotary motors in aircraft'" In-Reply-To: Subject: RE: [FlyRotary] Re: Coolant Water Pressure Date: Sat, 6 Oct 2007 19:10:51 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0033_01C8084C.9CD30170" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6000.16480 Thread-Index: AcgIOo0x2hk7Uce0TuWNoePYOvMvtQAMpOsg Message-ID: This is a multi-part message in MIME format. ------=_NextPart_000_0033_01C8084C.9CD30170 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Yes, Kelly. There is a duct that brings air from the left nostril back to the rear = of the radiator. You can just see it as it comes around the corner at the lower right side of the picture. There is a plenum that diffuses this = air to cover the radiator core and forces all the air that comes into the nostril to go through the radiator. When I did a tuft test on the face = of the radiator, I got a pretty good flow over the entire face of the = radiator. However, I had a stronger flow at the bottom. That is part of what = caused me to try the fan. That and I felt that I would need more air flow than = was provided through the nostril by prop blast when ground running. I do = not think the fan will be needed at speed in flight and in fact, may be an impediment at that time. =20 Bill B =20 _____ =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Kelly Troyer Sent: Saturday, October 06, 2007 1:01 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Coolant Water Pressure =20 Bill, I do not see any sign of ducting to force air through the radiator = instead of around it........Do you have ducting that is not in the photo ?? -- Kelly Troyer=20 "Dyke Delta"_13B ROTARY Engine=20 "RWS"_RD1C/EC2/EM2=20 "Mistral"_Backplate/Oil Manifold=20 =20 -------------- Original message from "Bill Bradburry" : --------------=20 Ok, I recently upgraded my computer to Vista and had to download some software to get my camera to talk to it=85So here are some pictures of = my cooling install =20 Notice the bypass hole that you guys are talking about needing to plug. This hole is in the housing which has been removed, so it is not a = player. The little rag you see on the oil line is a high tech way of checking = for a leak. (I have one!) =20 The red wire is the air temp sensor for the air after the radiator. It = is on top of the fan. Hoses are 1 =BC=94 The temperature sensor was moved from the left side = of the inlet to the top But is reading temperature as it enters the engine after the radiator. (coolest place) =20 My overflow catch can. I will be replacing this with a pressurized on = as per Lynn=92s suggestions in a previous post in order to introduce=20 An air cushion above the liquid under pressure so it will not be = =93locked=94. =20 I am planning to try and put suction on the cowling at the exit with a = leaf blower in addition to the prop blast and the small fan to see if an = increase in=20 Air flowing will help. I haven=92t checked the sides of the radiator = yet as I have been alone when running the engine=85. All inputs appreciated. I already know some things should be changed, = so don=92t hold back with the suggestions. =20 Thanks, Bill B =20 ------=_NextPart_000_0033_01C8084C.9CD30170 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Yes, = Kelly.

There is a duct that brings air = from the left nostril back to the rear of the radiator.=A0 You can just see it as = it comes around the corner at the lower right side of the picture.=A0 There is a = plenum that diffuses this air to cover the radiator core and forces all the air = that comes into the nostril to go through the radiator.=A0 When I did a tuft = test on the face of the radiator, I got a pretty good flow over the entire face = of the radiator.=A0 However, I had a stronger flow at the bottom.=A0 That is = part of what caused me to try the fan.=A0 That and I felt that I would need more air = flow than was provided through the nostril by prop blast when ground running.=A0 I = do not think the fan will be needed at speed in flight and in fact, may be an impediment at that time.

 

Bill B

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Kelly Troyer
Sent: Saturday, October = 06, 2007 1:01 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = Coolant Water Pressure

 

Bill,

  I do not see any sign of ducting to force air through the radiator instead of around

it........Do you have ducting that is not in the photo = ??

--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold


 

-------------- = Original message from "Bill Bradburry" = <bbradburry@bellsouth.net>: --------------

Ok, I recently upgraded my computer = to Vista and had to download some = software to get my camera to talk to it…So here are some pictures of my cooling = install

 

Notice the bypass hole that you = guys are talking about needing to plug.  This hole is in the housing which = has been removed, so it is not a player.

The little rag you see on the oil = line is a high tech way of checking for a leak. (I have = one!)

 

The red wire is the air temp sensor = for the air after the radiator.  It is on top of the = fan.

Hoses are 1 =BC”  The = temperature sensor was moved from the left side of the inlet to the = top

But is reading temperature as it = enters the engine after the radiator. (coolest = place)

 

My overflow catch can.  I will = be replacing this with a pressurized on as per Lynn’s suggestions in a previous post in order to introduce =

An air cushion above the liquid = under pressure so it will not be = “locked”.

 

I am planning to try and put = suction on the cowling at the exit with a leaf blower in addition to the prop blast = and the small fan to see if an increase in

Air flowing will help.  I haven’t checked the sides of the radiator yet as I have been alone = when running the engine….

All inputs appreciated.  I = already know some things should be changed, so don’t hold back with the suggestions.

 

Thanks,

=

Bill B

 

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