X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from EXHUB003-2.exch003intermedia.net ([207.5.74.29] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTPS id 3875229 for flyrotary@lancaironline.net; Mon, 05 Oct 2009 14:10:14 -0400 Received-SPF: none receiver=logan.com; client-ip=207.5.74.29; envelope-from=jwhaley@datacast.com Received: from EXVMBX003-5.exch003intermedia.net ([207.5.74.45]) by EXHUB003-2.exch003intermedia.net ([207.5.74.29]) with mapi; Mon, 5 Oct 2009 11:09:37 -0700 From: Jeff Whaley To: 'Rotary motors in aircraft' Date: Mon, 5 Oct 2009 11:10:27 -0700 Subject: Re: Zenith 801 Thread-Topic: Re: Zenith 801 Thread-Index: AcpF5x4YVIHg/K2hQAK4rjAErWeyNQ== Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_C03ABB0A7362B84BB53D544B3C305E0E015365177573EXVMBX0035e_" MIME-Version: 1.0 --_000_C03ABB0A7362B84BB53D544B3C305E0E015365177573EXVMBX0035e_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable George Lendich wrote: "I'm still trying to get my head around those kick-outs on the aft end of the rad outlet. I'm trying to confirm WHY they work - anyone got= any suggestions." George ( down under) Hi George, those kickers are the same as a cowl lip, seen on most 100-120 m= ph tail-draggers - they protrude into the airstream to generate a low press= ure area behind them, in this case behind the radiator exit plenum to assis= t the airflow through the cooler. Jeff --_000_C03ABB0A7362B84BB53D544B3C305E0E015365177573EXVMBX0035e_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

George Lendich wrote:

“I'm still trying to get my head around those kick-outs on the

aft end of the rad outlet. I'm trying to confirm WHY they work - anyone got any suggestions.”

George ( down under)

Hi George, those kickers are the same as a cowl lip, seen on= most 100-120 mph tail-draggers – they protrude into the airstream to gener= ate a low pressure area behind them, in this case behind the radiator exit plen= um to assist the airflow through the cooler.

Jeff

--_000_C03ABB0A7362B84BB53D544B3C305E0E015365177573EXVMBX0035e_--