X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 28 Jan 2010 12:43:45 -0500 Message-ID: X-Original-Return-Path: Received: from elasmtp-junco.atl.sa.earthlink.net ([209.86.89.63] verified) by logan.com (CommuniGate Pro SMTP 5.3.2) with ESMTP id 4101283 for lml@lancaironline.net; Wed, 27 Jan 2010 20:15:28 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.63; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=p+KO+c5j2lBsjYI+j1zHgBsENAnUT03ALnVdirfhow8yP/iSUU4gPe5CldBpZKHS; h=Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-ELNK-Trace:X-Originating-IP; Received: from [216.57.118.190] (helo=ccaselt3) by elasmtp-junco.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1NaIyD-00044u-H1 for lml@lancaironline.net; Wed, 27 Jan 2010 20:14:53 -0500 X-Original-Message-ID: <9A8A3E4760654F179084D7046489597B@nvidia.com> From: "Colyn Case at earthlink" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: Airspeed sensing switch /Auto gear extension / Engine out gear down Issue! X-Original-Date: Wed, 27 Jan 2010 20:14:52 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_041E_01CA9F8D.62848EA0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da9406e648b346fe6347538e4cba4e16e5d55350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 216.57.118.190 This is a multi-part message in MIME format. ------=_NextPart_000_041E_01CA9F8D.62848EA0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Chris said, AOA will compensate for weight very nicely. It doesn't know, however, = what descent rate is being flown and how much energy is needed to arrest = that sink. The energy needed goes up as a squared function of the = vertical speed. In the 360, I span descent rates from 500 to 2,000 fpm = on final (ILS to short approaches). The energy thus varies by a factor = ~16. It is the higher end of the scale where one can get into trouble. = Is "energy" equivalent to mv^2 in this case? =20 so if you double your sink rate you would need to double your speed = above stall to compensate? ------=_NextPart_000_041E_01CA9F8D.62848EA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Chris said,

AOA will compensate for weight very nicely. It doesn't = know,=20 however, what descent rate is being flown and how much energy is needed = to=20 arrest that sink. The energy needed goes up as a squared function = of the=20 vertical speed. In the 360, I span descent rates from 500 to 2,000 = fpm on=20 final (ILS to short approaches). The energy thus varies by a=20 factor ~16. It is the higher end of the scale where one can=20 get into trouble.

Is "energy" equivalent to mv^2 in this=20 case?

so if you double your sink rate you = would need to=20 double your speed above stall to compensate?

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