X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-la0-f46.google.com ([209.85.215.46] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTPS id 6374497 for flyrotary@lancaironline.net; Mon, 15 Jul 2013 20:16:36 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.215.46; envelope-from=wdleonard@gmail.com Received: by mail-la0-f46.google.com with SMTP id eg20so43179lab.5 for ; Mon, 15 Jul 2013 17:16:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=PEmT38r1F2giZH2KzzL2XvUgBf/v3XcrTkGAbPRSxSU=; b=UtmgQ97T8+0ENsQG/EOHxubbk/GZSYRyKrux61FDZUGUZcS0UiPjxXKGKfJbQVwYRF trNIvqc9JS4ix4GgHgHlTKQHbF8l6Tjl8z5JQiIGZU8JkxTRxMwJhyBscUFnul6mjf7T LDdGfIwLXBCpq3LLIw0LWdwBk9sehT6G959pX2BvM/IzdjnkVgIM5upNYkiPwt+d1ZDa NDoQzUzwOH/DS5FKQKGzh+UZc86hxTF6Y+B5xqXpWxFbtZRgciC7xRMwSzLYGbR/T8TG BdEKEV8rN74KL1WLlLxXdO+7s07s+uoIk+LbMEeoap5M3M9h6PQFqv/UIP/7awbhpsPf v8pA== MIME-Version: 1.0 X-Received: by 10.112.144.97 with SMTP id sl1mr25247625lbb.56.1373933760696; Mon, 15 Jul 2013 17:16:00 -0700 (PDT) Received: by 10.112.60.70 with HTTP; Mon, 15 Jul 2013 17:16:00 -0700 (PDT) In-Reply-To: References: Date: Mon, 15 Jul 2013 17:16:00 -0700 Message-ID: Subject: Re: [FlyRotary] Turbo Selection Workbook- Rev1 From: David Leonard To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=047d7b34419ac054c504e195e1a8 --047d7b34419ac054c504e195e1a8 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Should be no effect. Compressor map is a function of variables independent of what harnessed the energy(ie, the turbine section). That it not to say that changing the turbine A/R does not effect overall efficiency and a host of other things, just not the compressor map itself. Compressor sections also have an A/R, but changing that would mean that a whole new compressor map needs to be generated. On Mon, Jul 15, 2013 at 3:33 PM, Bobby J. Hughes wrote: > I think I located and corrected two errors. Can anyone explain how the > turbine housing A/R affects the compressor map?**** > > ** ** > > Bobby**** > > ** ** > > ** ** > > ** ** > > *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] *O= n > Behalf Of *Bobby J. Hughes > *Sent:* Sunday, July 14, 2013 6:51 PM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Turbo Selection Workbook- Initial Draft**** > > ** ** > > I=92ve modified a turbo sizing workbook I found on the internet. The > modification allow for 8 operational scenarios to account for altitude, > target HP, OAT etc. Each scenario provides a corrected airflow and pressu= re > ratio needed to select an appropriate turbo. The workbook may contain > errors so I=92m sending it out for input. Hopefully Ed or someone can > validate the formulas and those flying turbo aircraft will commit on real > world experience. **** > > ** ** > > Bobby Hughes**** > > ** ** > > ** ** > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > --=20 David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.net http://RotaryRoster.net --047d7b34419ac054c504e195e1a8 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable

Should be no effect. =A0 Compressor map is a function of v= ariables independent of what harnessed the energy(ie, the turbine section).= =A0That it not to say that changing the turbine A/R does not effect overal= l efficiency and a host of other things, just not the compressor map itself= .=A0

Compressor sections also have an A/R, but changing that woul= d mean that a whole new compressor map needs to be generated.

On Mon, Jul 15,= 2013 at 3:33 PM, Bobby J. Hughes <bhughes@qnsi.net> wrote:

I think I = located and corrected two errors. Can anyone explain how the turbine housin= g A/R affects the compressor map?

=A0
Bobby<= /u>
= =A0

=A0
=A0

From: Rotary m= otors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bobby = J. Hughes
Sent: Sunday, July 14, 2013 6:51 PM
To: Rotary motors in a= ircraft
Subject: [FlyRotary] Turbo Selection Workbook- Initial Dr= aft
=A0

I=92ve modified a turbo sizing workbook I found on t= he internet. The modification allow for 8 operational scenarios to account = for altitude, target HP, OAT etc. Each scenario provides a corrected airflo= w and pressure ratio needed to select an appropriate turbo. The workbook ma= y contain errors so I=92m sending it out for input. Hopefully Ed or someone= can validate the formulas and those flying turbo aircraft will commit on r= eal world experience.

=A0
Bobby Hughes
=A0
=A0<= /u>

--
Homepage: =A0http:/= /www.flyrotary.com/
Archive and UnSub: =A0 http://mail.lancaironline.net:81/lists= /flyrotary/List.html

--
David Le= onard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net --047d7b34419ac054c504e195e1a8--