Return-Path: Sender: (Marvin Kaye) To: lml Date: Wed, 24 Sep 2003 22:03:46 -0400 Message-ID: X-Original-Return-Path: Received: from cepheus.email.starband.net ([148.78.247.123] verified) by logan.com (CommuniGate Pro SMTP 4.1.4) with ESMTP id 2602576 for lml@lancaironline.net; Wed, 24 Sep 2003 21:44:42 -0400 Received: from starband.net (vsat-148-64-23-255.c050.t7.mrt.starband.net [148.64.23.255]) by cepheus.email.starband.net (8.12.9/8.12.9) with ESMTP id h8P1ic7K032177 for ; Wed, 24 Sep 2003 21:44:43 -0400 X-Original-Message-ID: <3F72487F.7060800@starband.net> X-Original-Date: Wed, 24 Sep 2003 18:44:31 -0700 From: "Hamid A. Wasti" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.0.2) Gecko/20021120 Netscape/7.01 X-Accept-Language: en-us, en MIME-Version: 1.0 X-Original-To: Lancair Mailing List Subject: Re: [LML] AOA Indications References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Jerry Fisher wrote: >The Rite Angle system is simpler. It uses a vane mounted under the wing >which swivels to follow the relative airflow, and which drives the cockpit >indicator, which is similar to the PSS indicator. > How do they handle icing? Is the vane heated? I would be a little concerned about the speed loss due to the vane. However, if you really want to do an apples to apples comparison with the PSS system, then you need to add an additional pitot tube to make the PSS system truly redundant, which may add close to the same amount of drag as this sensor. Hamid