X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 08 Jan 2009 19:07:44 -0500 Message-ID: X-Original-Return-Path: Received: from imo-d03.mx.aol.com ([205.188.157.35] verified) by logan.com (CommuniGate Pro SMTP 5.2.11) with ESMTP id 3414081 for lml@lancaironline.net; Tue, 06 Jan 2009 23:10:47 -0500 Received: from Sky2high@aol.com by imo-d03.mx.aol.com (mail_out_v39.1.) id q.d5c.2ecb7a92 (65100) for ; Tue, 6 Jan 2009 23:10:42 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Tue, 6 Jan 2009 23:10:42 EST Subject: Re: [LML] LNC2 AOA Pitot tube location? X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1231301442" X-Mailer: AOL 9.1 sub 5003 X-Spam-Flag:NO -------------------------------1231301442 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Chris, Consider mounting it on one of the aileron bell crank access cover. That may position the pitot within the desired range. The cover makes it easy to deal with the required connections as long as they are kept clear of the aileron mechanisms. It is possible to route the pressure and electrical lines through the rear spar and along the aft face of the spar to reenter through the fuselage filet close out. Another possibility would be to route the lines thru the outboard bell crank area rib and the wingtip rib, then back to the cockpit through the pvc pipe that carries the recognition/strobe light lines. 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 1/6/2009 8:23:28 P.M. Central Standard Time, cskelt@earthlink.net writes: Folks, I was persuaded by the arguments cited on the List in favor of an AOA indicator and just received a Dynon AOA Pitot tube to replace the standard AN5812. It's 2 1/4 inches longer than the AN5812, and so sticks out a couple of inches in front of the leading edge. In the installation instructions Dynon recommend that the tip should be between 2 and 12 inches aft of the leading edge, which would mean I need to move the mount aft to outboard of the gear doors. This would be a pain, and would also result in a longer and circuitous route for the pitot and AOA plumbing, as would mounting it at the wingtip, etc... I don't believe I'm the first to retrofit an AOA probe, so does anyone have views or experience on whether it would function well aerodynamically? Regards, Chris. _cskelt@earthlink.net_ (mailto:cskelt@earthlink.net) **************New year...new news. Be the first to know what is making headlines. (http://www.aol.com/?ncid=emlcntaolcom00000026) -------------------------------1231301442 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
Chris,
 
Consider mounting it on one of the aileron bell crank access=20 cover.  That may position the pitot within the desired range.  The= =20 cover makes it easy to deal with the required connections as long as they ar= e=20 kept clear of the aileron mechanisms.
 
It is possible to route the pressure and electrical lines through=20= the=20 rear spar and along the aft face of the spar to reenter through the fuselage= =20 filet close out. 
 
Another possibility would be to route the lines thru the outboard=20= bell=20 crank area rib and the wingtip rib, then back to the cockpit through th= e=20 pvc pipe that carries the recognition/strobe light lines.
 
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 1/6/2009 8:23:28 P.M. Central Standard Time,=20 cskelt@earthlink.net writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>

Folks,
I was persuaded by the arguments cited on the List in favor of an AOA= =20 indicator and just received a Dynon AOA Pitot tube to replace the=20 standard AN5812. It's 2 1/4 inches longer than the AN5812, and so sti= cks=20 out a couple of inches in front of the leading edge. In the installation=20 instructions Dynon recommend that the tip should be between= 2=20 and 12 inches aft of the leading edge, which would mean I need to move the= =20 mount aft to outboard of the gear doors. This would be a pain, and would a= lso=20 result in a longer and circuitous route for the pitot and AOA plumbing, as= =20 would mounting it at the wingtip, etc...
 
I don't believe I'm the first to retrofit an AOA probe, so does anyon= e=20 have views or experience on whether it would function well aerodynamically= ?=20
 
Regards, Chris.
 
 
 
 



New year...new news. Be t= he first to know what is making headlines.
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