X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from QMTA13.emeryville.ca.mail.comcast.net ([76.96.27.243] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3545833 for flyrotary@lancaironline.net; Thu, 12 Mar 2009 22:07:41 -0400 Received-SPF: none receiver=logan.com; client-ip=76.96.27.243; envelope-from=gregw@onestopdesign.biz Received: from OMTA14.emeryville.ca.mail.comcast.net ([76.96.30.60]) by QMTA13.emeryville.ca.mail.comcast.net with comcast id SR1E1b00B1HpZEsADS77xu; Fri, 13 Mar 2009 02:07:07 +0000 Received: from osd1 ([24.6.40.29]) by OMTA14.emeryville.ca.mail.comcast.net with comcast id SS761b00S0dkeQQ8aS76oH; Fri, 13 Mar 2009 02:07:07 +0000 Message-ID: From: "Greg Ward" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Fw: [FlyRotary] progress on N178RG Date: Thu, 12 Mar 2009 19:12:00 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00A8_01C9A346.6B7C8290" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5512 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 This is a multi-part message in MIME format. ------=_NextPart_000_00A8_01C9A346.6B7C8290 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hey Bill; Makes sense, although we're thinking with + or - 1600 degrees at the = turbo inlet, not sure how much raw oil is going to make it past it. = Push comes to shove maybe a down diverter of some kind. Greg=20 ----- Original Message -----=20 From: Bill Bradburry=20 To: Rotary motors in aircraft=20 Sent: Thursday, March 12, 2009 3:47 PM Subject: [FlyRotary] Re: Fw: [FlyRotary] progress on N178RG 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. :>) =20 Bill B=20 =20 -------------------------------------------------------------------------= ----- 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, =20 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. =20 =20 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. =20 Greg Ward =20 ----- Original Message -----=20 From: Mark Steitle=20 To: Rotary motors in aircraft=20 Sent: Monday, March 09, 2009 5:18 AM Subject: [FlyRotary] Re: Fw: [FlyRotary] progress on N178RG =20 Greg,=20 =20 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. =20 =20 Mark S. On Sun, Mar 8, 2009 at 9:10 PM, Greg Ward = wrote: =20 ----- Original Message -----=20 From: Greg Ward=20 To: Rotary motors in aircraft=20 Sent: Sunday, March 08, 2009 7:06 PM Subject: Re: [FlyRotary] progress on N178RG =20 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 =20 =20 ------=_NextPart_000_00A8_01C9A346.6B7C8290 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hey Bill;
Makes sense, although we're thinking with + = or - 1600=20 degrees at the turbo inlet, not sure how much raw oil is going to make = it past=20 it.  Push comes to shove maybe a down diverter of some=20 kind.
Greg
----- Original Message -----
From:=20 Bill=20 Bradburry
Sent: Thursday, March 12, 2009 = 3:47=20 PM
Subject: [FlyRotary] Re: Fw: = [FlyRotary]=20 progress on N178RG

Greg,

Another thing about the exhaust out the = side=85Don=92t=20 forget that we are adding oil to the fuel.  You will get some oil = stains=20 out of the exhaust and they will look better on the bottom. =20 :>)

 

Bill = B 

 

From:=20 Rotary motors in aircraft = [mailto:flyrotary@lancaironline.net] On=20 Behalf Of Mark Steitle
Sent: Thursday, March 12, 2009 = 11:47=20 AM
To: = Rotary motors in aircraft
Subject: [FlyRotary] Re: Fw: = [FlyRotary]=20 progress on N178RG

Greg,

 

The "exhaust exit out the side" should look = really=20 cool, but will certainly add drag to your airframe.  I didn't do = this=20 because my door is on the left and I didn't want to risk asphyxiating = myself=20 and my pax.  My DNA muffler exits out the left tunnel and just = about=20 fills the tunnel.  I'm considering adding some louvers on = the left=20 side cowl for the oil cooler exit air.  I think it would really = help with=20 the oil temps, maybe enough to allow removal of the oil-to-water=20 exchanger.  It would also provide additional flow for the water=20 radiator.  But, as I stated above, it will add to my cooling = drag. =20 Then again, maybe I should just leave things alone.   =20

 

Mark

On Mon, Mar 9, 2009 at 10:36 AM, Greg Ward = <gregw@onestopdesign.biz>=20 wrote:

Hey=20 Mark;

Yeah, it's a Legacy, and to flip it over, we = have to=20 wheel it outside, and crank the rotisserie as high as it will go, = lotta'=20 fun.  As to the turbo and exhaust, they occupy the whole lower = left area=20 of the cowl, and exit directly out the side,  and as I said = below, we are=20 leaving the stock exhaust bubbles in the lower cowl intact for heat to = exit.=20 Tests will tell how effective this is. =20

Greg=20 Ward

 

----- Original Message = -----=20

From: Mark=20 Steitle

To: Rotary motors in aircraft=20

Sent: Monday,=20 March 09, 2009 5:18 AM

Subject:=20 [FlyRotary] Re: Fw: [FlyRotary] progress on=20 N178RG

 

Greg,

 

That is a cool looking = scoop.  I'm looking=20 forward to seeing the side profile.  This is a Lancair Legacy,=20 correct?  (BTW, how do you flip it over inside the=20 garage?)

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

 

Mark S.

On Sun, Mar 8, 2009 at 9:10 PM, Greg Ward = <gregw@onestopdesign.biz>=20 wrote:

 

----- Original Message = -----=20

From: Greg Ward

To: Rotary motors in aircraft=20

Sent: Sunday,=20 March 08, 2009 7:06 PM

Subject: Re:=20 [FlyRotary] progress on = N178RG

 

A few shots of our cooling system finally=20 mounted as far as the firewall.  The two 1-1/2" = cooling=20 lines will be covered with 3" 1/2 round plastic covers, 2" = smaller in=20 diameter than the exhaust outlets on the cowling, which will = continue to let=20 heat from the engine exit.  You can't see the oil cooler, as it = is=20 mounted inside the scoop, in a similiar fashion as the=20 P-51.

We are awaiting final engine dyno tests, = and then we=20 can mate the whole mess up, and start on the next=20 phase.

Greg=20 Ward;

Lancair 20B = N178RG in=20 progress


--
Homepage: =  http://www.flyrotary.com/
Archive and UnSub: =   http://mail.lancaironline.net:81/lists/flyrotary/List.htm= l

 

 

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