X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 13 Jan 2008 08:30:15 -0500 Message-ID: X-Original-Return-Path: Received: from imo-d20.mx.aol.com ([205.188.139.136] verified) by logan.com (CommuniGate Pro SMTP 5.2c4) with ESMTP id 2642459 for lml@lancaironline.net; Sat, 12 Jan 2008 14:50:38 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.188.139.136; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-d20.mx.aol.com (mail_out_v38_r9.3.) id q.cf0.270ccf23 (30738) for ; Sat, 12 Jan 2008 14:49:57 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Sat, 12 Jan 2008 14:49:57 EST Subject: Re: [LML] Pitch Servo Connection X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1200167397" X-Mailer: Unknown sub 34 X-Spam-Flag: NO -------------------------------1200167397 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Rob, My S-Tec pitch servo is mounted behind the passenger seat in a pocket built into the tunnel wall so the push rod lines up beneath the center of the elevator push rod. The servo push rod runs aft and is secured to the elevator push rod with the same type nylon bracket used in the mechanical trim system. Both the trim bracket and the A/P bracket have SS hose clamps on each side so that no sliding can occur. The Lancair brackets made any adjustments quite easy. The servo has the mechanical stop mounted so that there can be no run-away. Finally, note that the forces exerted by the servo are very small when the elevator is in trim. When it is not in trim, the A/P will tell you. Thus, even a properly sized and secured Adel clamp (maybe with a rivet thru it) could be adequate. Scott Krueger AKA Grayhawk Lancair N92EX IO320 SB 89/96 Aurora, IL (KARR) Pilot not TSO'd, Certificated score only > 70%. In a message dated 1/12/2008 1:29:56 P.M. Central Standard Time, rwolf99@aol.com writes: Does anyone see a problem with mounting an autopilot pitch servo control rod to the main elevator pushrod by using the hardware supplied for the mechanical pitch trim, i.e., a collar clamped to the main pushrod to which the pitch servo pushrod rod end bearing is attached? Related question -- I vaguely recall that the STEC intsallation calls for brackets to be pop-riveted to the main elevator pushrod, and the rod end bearing is attached to those brackets. Is this recollection correct and, if so, does anyone have part number information so I can order up a set from STEC? Related question -- has anyone who uses the mechanical trim system had the collar slip at all? - Rob Wolf **************Start the year off right. Easy ways to stay in shape. http://body.aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489 -------------------------------1200167397 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
Rob,
 
My S-Tec pitch servo is mounted behind the passenger seat in=20= a=20 pocket built into the tunnel wall so the push rod lines up beneath= the=20 center of the elevator push rod.  The servo push rod runs aft= and=20 is secured to the elevator push rod with the same type nylon bracket us= ed=20 in the mechanical trim system.  Both the trim bracket and the A/P brack= et=20 have SS hose clamps on each side so that no sliding can occur.  The Lan= cair=20 brackets made any adjustments quite easy.  The servo has the mechanical= =20 stop mounted so that there can be no run-away. 
 
Finally, note that the forces exerted by the servo are very small when=20= the=20 elevator is in trim.  When it is not in trim, the A/P will tell you.&nb= sp;=20 Thus, even a properly sized and secured Adel clamp (maybe with=20 a rivet thru it) could be adequate.
 
Scott Krueger=20 AKA Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL (KARR)

Pil= ot=20 not TSO'd, Certificated score only > 70%.
 
In a message dated 1/12/2008 1:29:56 P.M. Central Standard Time,=20 rwolf99@aol.com writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>Does=20 anyone see a problem with mounting an autopilot pitch servo control rod to= the=20 main elevator pushrod by using the hardware supplied for the mechanical pi= tch=20 trim, i.e., a collar clamped to the main pushrod to which the pitch servo=20 pushrod rod end bearing is attached? 

Related question -- I=20 vaguely recall that the STEC intsallation calls for brackets to be pop-riv= eted=20 to the main elevator pushrod, and the rod end bearing is attached to those= =20 brackets.  Is this recollection correct and, if so, does anyone=20= have=20 part number information so I can order up a set from STEC?

Related=20 question -- has anyone who uses the mechanical trim system had the co= llar=20 slip at all?

- Rob Wolf=20
 

=

Start the year off right. Easy ways to stay in shape in the new year. -------------------------------1200167397--