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 5.2.13) with ESMTP id 3545708 for flyrotary@lancaironline.net; Thu, 12 Mar 2009 18:48:31 -0400 Received-SPF: pass receiver=logan.com; client-ip=207.115.11.54; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-146-126-109.mco.bellsouth.net[72.146.126.109]) by isp.att.net (frfwmhc04) with SMTP id <20090312224753H0400afl9ve>; Thu, 12 Mar 2009 22:47:54 +0000 X-Originating-IP: [72.146.126.109] From: "Bill Bradburry" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Re: Fw: [FlyRotary] progress on N178RG Date: Thu, 12 Mar 2009 18:47:55 -0400 Message-ID: <00AF8C7A330141C2B0ED84087C2EE92D@Desktop> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0036_01C9A343.0EF67920" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AcmjKep/OK9cTz4AQQeTQ0fSZah9DwAOkPaw X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 This is a multi-part message in MIME format. ------=_NextPart_000_0036_01C9A343.0EF67920 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Greg, Another thing about the exhaust out the side.Don't forget that we are adding oil to the fuel. You will get some oil stains out of the exhaust and they will look better on the bottom. :>) Bill B _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mark Steitle Sent: Thursday, March 12, 2009 11:47 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Fw: [FlyRotary] progress on N178RG Greg, The "exhaust exit out the side" should look really cool, but will certainly add drag to your airframe. I didn't do this because my door is on the left and I didn't want to risk asphyxiating myself and my pax. My DNA muffler exits out the left tunnel and just about fills the tunnel. I'm considering adding some louvers on the left side cowl for the oil cooler exit air. I think it would really help with the oil temps, maybe enough to allow removal of the oil-to-water exchanger. It would also provide additional flow for the water radiator. But, as I stated above, it will add to my cooling drag. Then again, maybe I should just leave things alone. Mark On Mon, Mar 9, 2009 at 10:36 AM, Greg Ward wrote: Hey Mark; Yeah, it's a Legacy, and to flip it over, we have to wheel it outside, and crank the rotisserie as high as it will go, lotta' fun. As to the turbo and exhaust, they occupy the whole lower left area of the cowl, and exit directly out the side, and as I said below, we are leaving the stock exhaust bubbles in the lower cowl intact for heat to exit. Tests will tell how effective this is. Greg Ward ----- Original Message ----- From: Mark Steitle To: Rotary motors in aircraft Sent: Monday, March 09, 2009 5:18 AM Subject: [FlyRotary] Re: Fw: [FlyRotary] progress on N178RG Greg, That is a cool looking scoop. I'm looking forward to seeing the side profile. This is a Lancair Legacy, correct? (BTW, how do you flip it over inside the garage?) One comment... don't underestimate the heat generated by the 20B exhaust. I think one of the big benefits of having the radiator inside the cowl is that the airflow helps to cool the white-hot exhaust. Without that airflow, you risk melting anything within sight of the exhaust. Mark S. On Sun, Mar 8, 2009 at 9:10 PM, Greg Ward wrote: ----- Original Message ----- From: Greg Ward To: Rotary motors in aircraft Sent: Sunday, March 08, 2009 7:06 PM Subject: Re: [FlyRotary] progress on N178RG A few shots of our cooling system finally mounted as far as the firewall. The two 1-1/2" cooling lines will be covered with 3" 1/2 round plastic covers, 2" smaller in diameter than the exhaust outlets on the cowling, which will continue to let heat from the engine exit. You can't see the oil cooler, as it is mounted inside the scoop, in a similiar fashion as the P-51. We are awaiting final engine dyno tests, and then we can mate the whole mess up, and start on the next phase. Greg Ward; Lancair 20B N178RG in progress -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_0036_01C9A343.0EF67920 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Greg,

Another thing about the exhaust out the side…Don’t = forget that we are adding oil to the fuel.  You will get some oil stains = out of the exhaust and they will look better on the bottom.  = :>)

 

Bill B 

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mark Steitle
Sent: Thursday, March 12, = 2009 11:47 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Fw: [FlyRotary] progress on N178RG

Greg,

 

The "exhaust exit out the side" should look really = cool, but will certainly add drag to your airframe.  I didn't do this because = my door is on the left and I didn't want to risk asphyxiating myself and my pax.  My DNA muffler exits out the left tunnel and just about fills the tunnel.  I'm considering adding some louvers on the left = side cowl for the oil cooler exit air.  I think it would really help = with the oil temps, maybe enough to allow removal of the oil-to-water = exchanger.  It would also provide additional flow for the water radiator.  But, = as I stated above, it will add to my cooling drag.  Then again, maybe I = should just leave things alone.   

 

Mark

On Mon, Mar 9, 2009 at 10:36 AM, Greg Ward <gregw@onestopdesign.biz> = wrote:

Hey = Mark;

Yeah, it's a Legacy, and to flip it over, we = have to wheel it outside, and crank the rotisserie as high as it will go, lotta' fun.  As to the turbo and exhaust, they occupy the whole lower left = area of the cowl, and exit directly out the side,  and as I said below, = we are leaving the stock exhaust bubbles in the lower cowl intact for heat to = exit. Tests will tell how effective this is.  =

Greg = Ward

 

----- Original Message ----- =

From: Mark Steitle

Sent: Monday, = March 09, 2009 5:18 AM

Subject: = [FlyRotary] Re: Fw: [FlyRotary] progress on N178RG

 

Greg,

 

That is a cool looking scoop.  I'm looking forward to = seeing the side profile.  This is a Lancair Legacy, correct?  (BTW, = how do you flip it over inside the garage?)

One comment... don't underestimate the heat generated by the 20B exhaust.  I think one of the big benefits of having the radiator = inside the cowl is that the airflow helps to cool the white-hot exhaust.  Without that airflow, you risk melting = anything within sight of the exhaust. 

 

Mark S.

On Sun, Mar 8, 2009 at 9:10 PM, Greg Ward <gregw@onestopdesign.biz> wrote:

 

----- Original Message ----- =

From: Greg Ward =

Sent: Sunday, = March 08, 2009 7:06 PM

Subject: Re: = [FlyRotary] progress on N178RG

 

A few shots of our cooling system finally = mounted as far as the firewall.  The two 1-1/2" cooling lines = will be covered with 3" 1/2 round plastic covers, 2" smaller in = diameter than the exhaust outlets on the cowling, which will continue to let heat = from the engine exit.  You can't see the oil cooler, as it is mounted inside = the scoop, in a similiar fashion as the = P-51.

We are awaiting final engine dyno tests, and = then we can mate the whole mess up, and start on the next = phase.

Greg = Ward;

Lancair 20B N178RG in progress


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