Return-Path: Sender: (Marvin Kaye) To: lml Date: Mon, 09 Jun 2003 18:28:13 -0400 Message-ID: X-Original-Return-Path: Received: from mailhost.det2.ameritech.net ([206.141.193.105] verified) by logan.com (CommuniGate Pro SMTP 4.1b7) with ESMTP id 2409119 for lml@lancaironline.net; Mon, 09 Jun 2003 17:52:39 -0400 Received: from default ([67.39.7.58]) by mailhost.det2.ameritech.net (InterMail vM.4.01.02.17 201-229-119) with SMTP id <20030609215237.HVQE8853.mailhost.det2.ameritech.net@default> for ; Mon, 9 Jun 2003 17:52:37 -0400 X-Original-Message-ID: <000b01c32ed2$63d63b60$22b9fea9@default> From: "craig_bu" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] IV-P flap adjustment X-Original-Date: Mon, 9 Jun 2003 17:59:24 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0008_01C32EB0.DC70AF00" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C32EB0.DC70AF00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Pat, Your story sounds so familiar I had to check and see if I wrote it. I = had that exact problem with my flaps and here are my lessons learned. 1 On each of your four flap track mounting locations, measure and = compare the location of the three bolt holes in each of the mounting = pads that are bonded to the rear spar. In my case, three of the = mounts had holes drilled in identical locations but the fourth mount = had its three holes drilled .1 (1/10) of an inch further aft of the = rear spar than the other mounts. 2 My belief is that when the wings were in the fixture at the factory = and the jig was installed to drill the holes for the flap tracks, there = must have been something in the jig which caused the three holes on this = particular mount to be drilled 1/10 of an inch aft of the others. 3 One measure you may want to make is with a spring scale attached to = the flap actuator rod and see how much effort it takes to actuate the = flap. Before the fix, mine was at 40 lbs. After the fix, it dropped = to approx 16lbs. =20 ** Special note - Please profit from my mistakes and realize that when = you redrill this mount, the position of the flap with respect to the = trailing edge of the wing has now changed and the gap between your wing = trailing edge and flap will have changed. This will rear its ugly head = when you sight down the top surface of the wing and check for parallel = between the aileron gap and the flap gap. =20 Take heart, This is one of many opportunities for you to excel. you = will get its fixed and it will work as smooth as advertised. =20 Craig ------=_NextPart_000_0008_01C32EB0.DC70AF00 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Pat,

Your story sounds so familiar I had to check and see if I wrote = it. I=20 had that exact problem with my flaps and here are my lessons = learned.

1 On each of your four flap track mounting locations, measure = and=20 compare the location of the three bolt holes in each of the = mounting=20 pads that are bonded to the rear spar. In my case, = three of=20 the mounts had holes drilled in identical locations but = the=20 fourth mount had its three holes drilled .1 (1/10) of an inch = further aft=20 of the rear spar than the other mounts.

2 My belief is that when the wings were in the fixture at the = factory=20 and the jig was installed to drill the holes for the flap tracks, = there=20 must have been something in the jig which caused the three holes on this = particular mount to be drilled 1/10 of an inch aft of the others.

3 One measure you may want to make is with a spring scale attached = to the=20 flap actuator rod and see how much effort it takes to actuate the=20 flap. Before the fix, mine was at 40 lbs. After = the fix,=20 it dropped to approx 16lbs.

** Special note - Please profit from my mistakes and realize that = when you=20 redrill this mount, the position of the flap with respect to the = trailing edge=20 of the wing has now changed and the gap between your wing trailing edge = and flap=20 will have changed. This will rear its ugly head when you sight = down the=20 top surface of the wing and check for parallel between the aileron gap = and the=20 flap gap.

Take heart, This is one of many opportunities for you to = excel. =20 you will get its fixed and it will work as smooth as = advertised. =20

Craig

------=_NextPart_000_0008_01C32EB0.DC70AF00--