X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-qy0-f134.google.com ([209.85.221.134] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3546122 for flyrotary@lancaironline.net; Fri, 13 Mar 2009 08:49:52 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.221.134; envelope-from=msteitle@gmail.com Received: by qyk40 with SMTP id 40so2964219qyk.7 for ; Fri, 13 Mar 2009 05:49:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=daZVQPfVVqYpspPYEs7FHjw48o0roEa1y+8sUxXCFw8=; b=oz7MszmcCBHzEKPTZ+MthKne6K+hiptui7zlRhrz/yps9ffNDXjtqlV0Ef3NFeY1ZW XMLmbYCw0AibV3oumj3WoZeAt0balz6gH8upXsOs72vTykFXRNrK7WttvMhXOKRUxXoc ysvmdie1xEN8EU1cK3mxAw80nBOse0OQHALL4= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=kDUVXX86qqOdB9Zmd++hcwyQfZjm4TAmx0HfnFb85Mhl0xBGFy7KreA8GRBpGFMl8N LdxD+4bfjZjklMZ8eAh6Xz60xuDLpGJNAgoTd4IZDXrxsq0hiceD+ECCA4GeCMp2RW8u PzO0ybHHBfsBy+H5VIZZtH58Fx6qJHxdQDj20= MIME-Version: 1.0 Received: by 10.224.45.193 with SMTP id g1mr1800763qaf.247.1236948555881; Fri, 13 Mar 2009 05:49:15 -0700 (PDT) In-Reply-To: References: Date: Fri, 13 Mar 2009 07:49:15 -0500 Message-ID: <5cf132c0903130549j545c4983p7ac80086adefb509@mail.gmail.com> Subject: Re: [FlyRotary] Re: Fw: [FlyRotary] progress on N178RG From: Mark Steitle To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0015175cb02c475f520464ff8785 --0015175cb02c475f520464ff8785 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Now I see. Sounds like the right solution. Experi-"mental" LOL Mark On Thu, Mar 12, 2009 at 9:08 PM, Greg Ward wrote: > *That's why it's called "Experimental", the key word, "mental". We plan > on cutting it (the 4" exhaust) **into an oval, ala' turbine exhausts, and > see what happens. We have cooling and oil lines coming into the lower cowl, > and honestly don't want the heat there if we can help it.* > *Greg* > > ----- Original Message ----- > *From:* Mark Steitle > *To:* Rotary motors in aircraft > *Sent:* Thursday, March 12, 2009 8:47 AM > *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 >>> >>> >> > --0015175cb02c475f520464ff8785 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Now I see.=A0 Sounds like the right solution.=A0 Experi-"mental&q= uot;=A0 LOL
=A0
Mark

On Thu, Mar 12, 2009 at 9:08 PM, Greg Ward <gregw@onestopde= sign.biz> wrote:
That's why it's called "Experime= ntal", the key word, "mental".=A0 We plan on cutting it (the= 4" exhaust) into an oval, al= a' turbine exhausts, and see what happens.=A0 We have cooling and oil l= ines coming into the lower cowl, and honestly don't want the heat there= if we can help it.
Greg
----- Original Message -----
Sent: Thursday, March 12, 2009 8:47 = AM
Subject: [FlyRotary] Re: Fw: [FlyRot= ary] progress on N178RG

Greg,
=A0
The "exhaust exit out the side" should look really cool, but= will certainly add drag to your airframe.=A0 I didn't do this because = my door is on the left and I didn't want to risk asphyxiating myself an= d my pax.=A0 My DNA muffler exits out the left tunnel and just about fills = the=A0tunnel.=A0 I'm considering adding some louvers on the left side c= owl for the oil cooler exit air.=A0 I think it would really help with the o= il temps, maybe enough to allow removal of the oil-to-water exchanger.=A0 I= t would also provide additional flow for the water radiator.=A0 But, as I s= tated above, it will add to my cooling drag.=A0 Then again, maybe I should = just leave things alone.=A0 =A0
=A0
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 g= o, lotta' fun.=A0 As to the turbo and exhaust, they occupy the whole lo= wer left area of the cowl, and exit directly out the side,=A0 and as I said= below, we are leaving the stock exhaust bubbles in the lower cowl intact f= or heat to exit. Tests will tell how effective this is.=A0 =
Greg Ward
=A0
----- Original Message -----
Sent: Monday, March 09, 2009 5:18 AM=
Subject: [FlyRotary] Re: Fw: [FlyRot= ary] progress on N178RG

Greg,
=A0
That is a cool looking scoop.=A0=A0I'm looking forward to seeing t= he side profile.=A0 This is a Lancair Legacy, correct?=A0 (BTW, how do you = flip it over inside the garage?)
One comment... don't underestimate the heat generated by the 20B e= xhaust.=A0 I think one of the big benefits of having the radiator inside th= e cowl is that=A0the airflow=A0helps to cool the white-hot=A0exhaust.=A0 Wi= thout that airflow, you risk melting anything within sight of the exhaust.= =A0
=A0
Mark S.
On Sun, Mar 8, 2009 at 9:10 PM, Greg Ward <gregw@onestopdesign.biz> wrote:
=A0
----- Original Message -----=20
To: Rotary motors in aircraft <= /div>
Sent: Sunday, March 08, 2009 7:06 PM
Subject: Re: [FlyRotary] progress on N178RG

A few shots of our cooling system finally mou= nted=A0as far as=A0the firewall.=A0 The=A0two 1-1/2" cooling lines wil= l be covered with 3" 1/2 round plastic covers,=A02" smaller in di= ameter than the exhaust outlets on the cowling, which will continue to let = heat from the engine exit.=A0 You can't see the oil cooler, as it is mo= unted inside the scoop, in a similiar fashion as the P-51.<= /div>
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: =A0http://www.flyrotary.com/
Archive and UnSub:= =A0 http://mail.lancaironline.net:81/lists/flyrotary/List.ht= ml




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