X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from tomcat.al.noaa.gov ([140.172.240.2] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 934059 for flyrotary@lancaironline.net; Thu, 05 May 2005 18:57:49 -0400 Received-SPF: none receiver=logan.com; client-ip=140.172.240.2; envelope-from=bdube@al.noaa.gov Received: from mungo.al.noaa.gov (mungo.al.noaa.gov [140.172.241.126]) by tomcat.al.noaa.gov (8.12.11/8.12.0) with ESMTP id j45Mv5js011386 for ; Thu, 5 May 2005 16:57:05 -0600 (MDT) Message-Id: <6.2.1.2.0.20050505165032.03335078@mailsrvr.al.noaa.gov> X-Mailer: QUALCOMM Windows Eudora Version 6.2.1.2 Date: Thu, 05 May 2005 16:56:34 -0600 To: "Rotary motors in aircraft" From: Bill Dube Subject: Ramair-airfilters-Revisited In-Reply-To: References: Mime-Version: 1.0 Content-Type: text/html; charset="us-ascii" There has been an interesting thread on ram air and filtering on the RV list. Here is a link to a clever looking solution:

http://www.lazy8.net/intakesystem.htm

Looks simple and lightweight, but I am not quite sure where you would mount it on a rotary. Also, it doesn't have a bend in the path to drop out bugs and big chunks when the valve is open. This is easily corrected, however.

and a more traditional approach

http://www.rvproject.com/ramair.html

Again, no "bug bend".