X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from omr-m03.mx.aol.com ([64.12.143.77] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTPS id 6361031 for flyrotary@lancaironline.net; Thu, 04 Jul 2013 10:01:50 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.143.77; envelope-from=ARGOLDMAN@aol.com Received: from mtaomg-da02.r1000.mx.aol.com (mtaomg-da02.r1000.mx.aol.com [172.29.51.138]) by omr-m03.mx.aol.com (Outbound Mail Relay) with ESMTP id C0672700373EE for ; Thu, 4 Jul 2013 09:58:30 -0400 (EDT) Received: from core-dse004a.r1000.mail.aol.com (core-dse004.r1000.mail.aol.com [172.29.227.205]) by mtaomg-da02.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 4A936E00008A for ; Thu, 4 Jul 2013 09:58:29 -0400 (EDT) From: ARGOLDMAN@aol.com Full-name: ARGOLDMAN Message-ID: Date: Thu, 4 Jul 2013 09:58:29 -0400 (EDT) Subject: Re: [FlyRotary] Re: Ram Air and filters To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_e58cd.3ac7543a.3f06d985_boundary" X-Mailer: AOL 9.6 sub 168 X-Originating-IP: [67.184.50.137] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1372946309; bh=+E/xTEteJRxsGcMB/JrOjuWGGBkYLcJ5unUdmzO34/c=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=mAW/uLJ/35kxFrKHU2ke37VlZk/JpUWUVt9G5rTcIsBoFNf2bnHB3e2KWCU9aSIKN L38gRKQvcSM0LqkB7CdipNlkLOlKsNWQ3oR7odDOOCGPWoJMWiEi53cekoC8dWRKsR UBUgLIT1XbG8Q8hJ0Sx0Pn+lWw9cS8P1AUPYdwfY= X-AOL-SCOLL-SCORE: 0:2:412485184:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d338a51d57f8519f6 --part1_e58cd.3ac7543a.3f06d985_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit The necessity of a filter may depend on where you fly from and where you expect to fly. Occasionally there are swarms of insects that we fly through (at least in my part of the country) which will be ingested. those little exoskeletons are quite abrasive. Mooney in their old "Super 21s" had a flap which allowed one to select ram air at cruise. In a carb, when operating on carb heat, the air is unfiltered. Rich In a message dated 7/4/2013 7:48:58 A.M. Central Daylight Time, rwstracy@gmail.com writes: > 2. I take it that filtering is essential. How does water effect filter material? What filter material is best. On a car, a must. On an airplane, just be careful where you put inlet ( keep it high) and don't taxi behind someone on a dry dusty taxiway. Never had an air filter. --part1_e58cd.3ac7543a.3f06d985_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
The necessity of a filter may depend on where you fly from and where&n= bsp;=20 you expect to fly. Occasionally there are swarms of insects that we fly thr= ough=20 (at least in my part of the country) which will be ingested. those little= =20 exoskeletons are quite abrasive.
 
Mooney in their old "Super 21s"  had a flap which allowed on= e=20 to select ram air at cruise.
 
In a carb, when operating on carb heat, the air is unfiltered.
 
Rich
 
In a message dated 7/4/2013 7:48:58 A.M. Central Daylight Time,=20 rwstracy@gmail.com writes:
= > 2.=20 I take it that filtering is essential. How does water effect filter mater= ial?=20 What filter material is best.

On a car, a must.  On an airpla= ne,=20 just be careful where you put inlet ( keep it high) and don't taxi behind= =20 someone on a dry dusty taxiway.   Never had an air=20 filter.
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