X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.121] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2372957 for flyrotary@lancaironline.net; Sat, 06 Oct 2007 19:30:44 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.121; envelope-from=eanderson@carolina.rr.com Received: from edward2 ([24.74.103.61]) by cdptpa-omta01.mail.rr.com with SMTP id <20071006233006.UZRC4058.cdptpa-omta01.mail.rr.com@edward2> for ; Sat, 6 Oct 2007 23:30:06 +0000 Message-ID: <000f01c80870$ddb07eb0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Duct?[FlyRotary] Re: Coolant Water Pressure Date: Sat, 6 Oct 2007 19:30:22 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000C_01C8084F.56633540" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 This is a multi-part message in MIME format. ------=_NextPart_000_000C_01C8084F.56633540 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Bill, do I interpret your explanation of your duct below correctly. You = pull your air in from up front of the cowl and then route it via the = duct to the firewall side of the radiator (the side not shown in the = photo) and then have it flow through the core and exit up into the cowl? Ed ----- Original Message -----=20 From: Bill Bradburry=20 To: Rotary motors in aircraft=20 Sent: Saturday, October 06, 2007 7:10 PM Subject: [FlyRotary] Re: Coolant Water Pressure 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 -------------------------------------------------------------------------= ----- 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.So 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" 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's suggestions in a previous post in order to introduce=20 An air cushion above the liquid under pressure so it will not be = "locked". =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'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. =20 Thanks, Bill B =20 ------=_NextPart_000_000C_01C8084F.56633540 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Bill, do I interpret your explanation of your = duct below=20 correctly.  You pull your air in from up front of the cowl and then = route=20 it via the duct to the firewall side of the radiator (the side not shown = in the=20 photo) and then have it flow through the core and exit up into the=20 cowl?
 
Ed
----- Original Message -----
From:=20 Bill=20 Bradburry
Sent: Saturday, October 06, = 2007 7:10=20 PM
Subject: [FlyRotary] Re: = Coolant Water=20 Pressure

Yes,=20 Kelly.

There is a = duct that=20 brings air from the left nostril back to the rear of the = radiator.  You=20 can just see it as it comes around the corner at the lower right side = of the=20 picture.  There is a plenum that diffuses this air to cover the = radiator=20 core and forces all the air that comes into the nostril to go through = the=20 radiator.  When I did a tuft test on the face of the radiator, I = got a=20 pretty good flow over the entire face of the radiator.  However, = I had a=20 stronger flow at the bottom.  That is part of what caused me to = try the=20 fan.  That and I felt that I would need more air flow than was = provided=20 through the nostril by prop blast when ground running.  I do not = think=20 the fan will be needed at speed in flight and in fact, may be an = impediment at=20 that time.

 

Bill=20 B

 

From: Rotary=20 motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Kelly = Troyer
Sent: Saturday, October 06, = 2007 1:01=20 PM
To: Rotary = motors in=20 aircraft
Subject: = [FlyRotary]=20 Re: Coolant Water Pressure

 

Bill,

  I do not see any sign of ducting to = force air=20 through the radiator instead of = around

it........Do you have ducting that is not in = the photo=20 ??

--
Kelly Troyer
"Dyke = Delta"_13B=20 ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil = Manifold=20


 

-------------- Original = message from=20 "Bill Bradburry" <bbradburry@bellsouth.net>: --------------=20

Ok, I = recently=20 upgraded my computer to Vista and had to download some = software to=20 get my camera to talk to it=85So here are some pictures of my = cooling=20 install

 

Notice = the bypass=20 hole that you guys are talking about needing to plug.  This = hole is in=20 the housing which has been removed, so it is not a=20 player.

The = little rag you=20 see on the oil line is a high tech way of checking for a leak. (I = have=20 one!)

 

The red = wire is the=20 air temp sensor for the air after the radiator.  It is on top = of the=20 fan.

Hoses are = 1=20 =BC=94  The temperature sensor was moved from the left side of = the inlet to=20 the top

But is = reading=20 temperature as it enters the engine after the radiator. (coolest=20 place)

 

My = overflow catch=20 can.  I will be replacing this with a pressurized on as per = Lynn=92s = suggestions in=20 a previous post in order to introduce

An air = cushion=20 above the liquid under pressure so it will not be=20 =93locked=94.

 

I am = planning to=20 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=20 help.  I haven=92t checked the sides of the radiator yet as I = have been=20 alone when running the engine=85.

All = inputs=20 appreciated.  I already know some things should be changed, so = don=92t=20 hold back with the suggestions.

 

Thanks,

Bill=20 B

 

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