Return-Path: Received: from [199.185.220.221] (HELO priv-edtnes04.telusplanet.net) by logan.com (CommuniGate Pro SMTP 4.1.5) with ESMTP id 2636127 for flyrotary@lancaironline.net; Tue, 14 Oct 2003 03:56:53 -0400 Received: from Endurance ([209.52.209.199]) by priv-edtnes04.telusplanet.net (InterMail vM.5.01.06.05 201-253-122-130-105-20030824) with SMTP id <20031014075649.VQOT6751.priv-edtnes04.telusplanet.net@Endurance> for ; Tue, 14 Oct 2003 01:56:50 -0600 From: "Haywire" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: solo's & Delta T... no more emergencies Date: Tue, 14 Oct 2003 00:56:37 -0700 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_004E_01C391EE.05840D10" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_004E_01C391EE.05840D10 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit <... I've considered adding a set of louvers on the right side of the cowl and ducting the right rad outlet to exit the louvers ...> If you try this, you might want to take care to avoid "rooster tail" exit drag. Studies have shown that is a real significant component of drag. Canard folks have picked up significant airspeed by making them go away. Best ... Jim S. Thanks for passing this along. It's certainly something to consider before hacking holes in my paint job. Gee Ed, how about slapping some 200mph duct tape over your louvers and let me know if you see a speed increase before you overheat? ;-) S. Todd Bartrim Turbo 13B RV-9Endurance C-FSTB http://www3.telus.net/haywire/RV-9/C-FSTB.htm "Whatever you vividly imagine, Ardently desire, Sincerely believe in, Enthusiastically act upon, Must inevitably come to pass". ------=_NextPart_000_004E_01C391EE.05840D10 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

<... I've considered adding a set of louvers on the right side = of the cowl=20 and ducting the right rad outlet to exit the louvers=20 ...>
If you try this, = you might=20 want to take care to avoid "rooster tail" exit drag. Studies have = shown=20 that is a real significant component of drag. Canard folks have = picked up=20 significant airspeed by making them go away. =
Best ... Jim S.
=20

Thanks=20 for passing this along. It's certainly something to consider before = hacking=20 holes in my paint job. Gee Ed, how about slapping some 200mph duct tape = over=20 your louvers and let me know if you see a speed increase before you = overheat?=20 ;-)

S. Todd Bartrim
Turbo 13B = RV-9Endurance
C-FSTB
http://www3.telus.net/haywire/RV-9/C-FSTB.htm

= =20 "Whatever you vividly imagine, Ardently desire, Sincerely believe in,=20 Enthusiastically act upon, Must inevitably come to=20 pass".

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