Return-Path: Sender: (Marvin Kaye) To: lml Date: Wed, 13 Nov 2002 12:45:12 -0500 Message-ID: X-Original-Return-Path: Received: from smtp03.mrf.mail.rcn.net ([207.172.4.62] verified) by logan.com (CommuniGate Pro SMTP 4.0.1) with ESMTP id 1862184 for lml@lancaironline.net; Wed, 13 Nov 2002 10:58:03 -0500 Received: from 216-164-236-119.s119.tnt3.frdb.va.dialup.rcn.com ([216.164.236.119] helo=OFFICE) by smtp03.mrf.mail.rcn.net with smtp (Exim 3.35 #4) id 18Bztz-0000B7-00 for lml@lancaironline.net; Wed, 13 Nov 2002 10:58:03 -0500 X-Original-Message-ID: <064401c28b2d$a82fa880$cb9f3bd0@OFFICE> From: "Bill & Sue" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: why don't we talk more about how we fly our Lancairs? X-Original-Date: Wed, 13 Nov 2002 10:59:32 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 > Therefore I am applying up to 1/4 of the force on the flaps that would be > placed on them if they were down 45 degrees. That is a little higher than I > thought. I will try to stay at 5 degrees until under 140 kts. So far though, > no trouble. Hmmmm, not so sure about that Lorn. The trig is, of course, correct but the assumption is that all of the settings are the same airspeed. The force on the flaps at any given extension would, I believe, increase with the square of the airspeed. I suspect that 10 degrees at 160 kts would produce a lot more force than 17.4%. 160 kts should produce about 2 1/2 times the stress at any given setting than 100 kts. Sooo, if we assume that 45 degrees at 100 knots is the max allowable force, then 10 degrees at 160 knots should be about 61% of the max allowable (17.4 x 2.5) / 70.7 . Still conservative but more than 17%. Is my thinking correct here or am I missing something? Bill harrelson@erols.com N5ZQ LNC2 O-320 VA42 Fredericksburg, VA