Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Fri, 22 Oct 2004 12:08:20 -0400 Message-ID: X-Original-Return-Path: Received: from imo-d05.mx.aol.com ([205.188.157.37] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 482794 for lml@lancaironline.net; Fri, 22 Oct 2004 11:15:17 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.157.37; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-d05.mx.aol.com (mail_out_v37_r3.8.) id q.d2.19eb914a (4320) for ; Fri, 22 Oct 2004 11:14:42 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Fri, 22 Oct 2004 11:14:42 EDT Subject: Re: [LML] Re: S-TEC 50 Problem - LNC2 X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1098458082" X-Mailer: 9.0 for Windows sub 5000 -------------------------------1098458082 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Andre, Thanks for the info. Yesterday I went for a ride (and what a ride)! I had 800 foot, 3100 fpm dives and steep climbs on alt hold. If carefully trimmed, hold engagement was fine for about 12 seconds - then another wild ride ensued. A conversation with S-Tec while sitting in the plane at the hangar will result in my performing some ground tests - but, note this - Engaging hold on the ground sometimes resulted the stick moving forward. While talking, I saw the trim lights (randomly) come on and a stick bump would turn them off. Sucking and blowing on the sensor generally resulted in down elevator movement??????????? More tests today. I will mention the "sensitivity" fix to S-Tec tech. This is probably a good solution to alt hold oscillations, but there is something seriously wrong with my A/P even though the pitch servo motor is new, the sensor is new and my computer was checked by S-Tec within the last 30 days. Scott Krueger AKA Grayhawk N92EX IO320 Aurora, IL (KARR) Some Assembly Required Using Common Hand Tools. -------------------------------1098458082 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Andre,

Thanks for the info.

Yesterday I went for a ride (and what a ride)!

I had 800 foot, 3100 fpm dives and steep climbs on alt hold. If=20 carefully trimmed, hold engagement was fine for about 12 seconds - then anot= her=20 wild ride ensued.

A conversation with S-Tec while sitting in the plane at the hangar will= =20 result in my performing some ground tests - but, note this -

Engaging hold on the ground sometimes resulted the stick moving forward= .=20 While talking, I saw the trim lights (randomly) come on and a stick bump wou= ld=20 turn them off.

Sucking and blowing on the sensor generally resulted in down elevator=20 movement???????????

More tests today.

I will mention the "sensitivity" fix to S-Tec tech. This is proba= bly=20 a good solution to alt hold oscillations, but there is something seriously w= rong=20 with my A/P even though the pitch servo motor is new, the sensor is new and=20= my=20 computer was checked by S-Tec within the last 30 days.=20

Scott Krueger=20 AKA Grayhawk
N92EX IO320 Aurora, IL (KARR)

Some Assembly Required=20
Using Common Hand Tools.

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