X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from wx-out-0506.google.com ([66.249.82.228] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2373601 for flyrotary@lancaironline.net; Sun, 07 Oct 2007 07:45:42 -0400 Received-SPF: pass receiver=logan.com; client-ip=66.249.82.228; envelope-from=msteitle@gmail.com Received: by wx-out-0506.google.com with SMTP id i27so893092wxd for ; Sun, 07 Oct 2007 04:45:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; bh=U6j59i6kEYUiD7TW35IqgbrRVV105n8Lux6u7pE2sa4=; b=TxEC8tlFBL0V3tgVCy7CW6tR9FtevUt/LYMWRrVy6mz+XnHWL27KZqJEUfZ5yNtnoe6n5hzpsL5HPnz9wKn/0j10cKzdejhStIBnLelkGE0PDvVGf/mwcVN0XCny2cEoXjM3NTvVJCe+oKo7tl7hj4wJQNZbRKKGGMCN2e5WDYM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=ikhD1PPna7RXuzKxAeOLYLj41zlWkrzDDpPZ/a7ENZ0A0V2ub+RJYU5DscCErfTlgGn4uTVQKw188Ankp/C4fk1CXhB8GKYmjFGZmZ85W3jSZzfnUf7y6joeIR8M7bSTB4m+I0L200JzHbh/p5YvB3msYEoDmZEK6AVH/8vlVsM= Received: by 10.90.90.16 with SMTP id n16mr2174245agb.1191757504500; Sun, 07 Oct 2007 04:45:04 -0700 (PDT) Received: by 10.90.35.16 with HTTP; Sun, 7 Oct 2007 04:45:03 -0700 (PDT) Message-ID: <5cf132c0710070445v1e9366d2rf15b8743507f6f04@mail.gmail.com> Date: Sun, 7 Oct 2007 06:45:03 -0500 From: "Mark Steitle" To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Coolant Water Pressure In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_37694_1911231.1191757503844" References: ------=_Part_37694_1911231.1191757503844 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Bill, Since I have the capability (EFIS-1 and EM-2), I measure it both places. This has been very helpful in evaluating the cooling system for the Texas summertime heat. I do the same on the oil. But what I really want to know is how close I am to boil-over (meltdown). That is why I am most concerned with the temps leaving the engine. I'm not sure what benefit it is knowin= g the coolant return temp. Sorry, but I only have 3.6 hrs so far. And I'm still working out the bugs. Glad to hear that you'll be attending the fly-in. See you there... Mark S. On 10/6/07, Bill Bradburry wrote: > > Mark, > > Yes I will be there on Saturday. I suppose it is too much to ask for you > to fly your plane there??? :>) > > > > You know, I think my 360 degree kink is going to require around 40 knots > in order to have the energy to make all those turns=85.Right now a 120 kn= ot > test is going to require a trailer hitch! J > > The location for the temp measurement is basically stock. The stock > sending unit was metric and too large to use with the one that came with = the > EM-2, so I plugged it and tapped a smaller hole on top as opposed to the > stock location on the side of the inlet. I was wondering why the stock > location measured temps incoming to the engine if it is better to measure > outgoing temps. > > > > Bill B > > > ------------------------------ > > *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] *O= n > Behalf Of *Mark Steitle > *Sent:* Saturday, October 06, 2007 7:48 PM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Re: Coolant Water Pressure > > > > Hi Bill, > > Looks like you've made great progress since we last spoke. It shouldn't > be long now. Are you planning on attending Tracy's (actually, I should s= ay > Laura's) rotary roundup? Lots to talk about. > > > > Concerning your cooling system, I assume the air comes in the backside of > the radictor? What kind of inlet & diffuser did you use? I measured my > airflow today through the radiator. It flows 40 knots at 120 knots IAS. = It > may be a little fast. You may want to measure yours, when the time comes= . > > > > > You mentioned that you were measuring coolant temperature after the > radiator? I think you also need to measure it as it leaves the engine. > This will tell you how hot you're running and how close you are to redlin= e. > Just the opposite as for the oil. > > > > If those hose clamps are not constant torque clamps, please consider > upgrading them before first flight. They're available from McMaster. > > > > Keep up the good work. Hope to see you at Tracy's. > > > Mark S. > > > > > On 10/6/07, *Bill Bradburry* wrote: > > 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 > > > > 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 i= s > 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 a= s > I have been alone when running the engine=85. > > All inputs appreciated. I already know some things should be changed, so > don't hold back with the suggestions. > > > > Thanks, > > Bill B > > > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/Lis= t.html > > > > > ------=_Part_37694_1911231.1191757503844 Content-Type: text/html; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline
Bill,
Since I have the capability (EFIS-1 and EM-2), I measure it both place= s.  This has been very helpful in evaluating the cooling system for th= e Texas summertime heat.  I do the same on the oil.  But what I r= eally want to know is how close I am to boil-over (meltdown).  That is= why I am most concerned with the temps leaving the  engine.  I&#= 39;m not sure what benefit it is knowing the coolant return temp.
 
Sorry, but I only have 3.6 hrs so far.  And I'm still working= out the bugs.  
 
Glad to hear that you'll be attending the fly-in.  See you th= ere...
 
Mark S. 

 
On 10/6/07, = Bill Bradburry <bbradbur= ry@bellsouth.net> wrote:

Mark,

Yes I will be there on Saturday.&nb= sp; I suppose it is too much to ask for you to fly your plane there??? = ; :>)

 

You know, I think my 360 degree kin= k is going to require around 40 knots in order to have the energy to make a= ll those turns=85.Right now a 120 knot test is going to require a trailer h= itch! =20 J<= font face=3D"Arial" color=3D"navy" size=3D"2">

The location for the temp measureme= nt is basically stock.  The stock sending unit was metric and too larg= e to use with the one that came with the EM-2, so I plugged it and tapped a= smaller hole on top as opposed to the stock location on the side of the in= let.  I was wondering why the stock location measured temps incoming t= o the engine if it is better to measure outgoing temps.

 

Bill B

 

On 10/6/07, Bill Bradburry < bbradburry@bellsouth.net> wrote:

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 guy= s are talking about needing to plug.  This hole is in the housing whic= h has been removed, so it is not a player.=20

The little rag you see on the oil l= ine is a high tech way of checking for a leak. (I have one!)<= /p>

 

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 tem= perature sensor was moved from the left side of the inlet to the top=

But is reading temperature as it en= ters 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=20

An air cushion above the liquid und= er pressure so it will not be "locked".

 

I am planning to try and put suctio= n on the cowling at the exit with a leaf blower in addition to the prop bla= st and the small fan to see if an increase in=20

Air flowing will help.  I have= n't checked the sides of the radiator yet as I have been alone when run= ning the engine=85.=20

All inputs appreciated.  I alr= eady know some things should be changed, so don't hold back with the su= ggestions.=20

 

Thanks,

Bill B

 

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Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrot= ary/List.html=20