X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 25 Aug 2007 10:07:23 -0400 Message-ID: X-Original-Return-Path: Received: from smtp117.sbc.mail.sp1.yahoo.com ([69.147.64.90] verified) by logan.com (CommuniGate Pro SMTP 5.1.11) with SMTP id 2283541 for lml@lancaironline.net; Sat, 25 Aug 2007 00:26:53 -0400 Received-SPF: none receiver=logan.com; client-ip=69.147.64.90; envelope-from=n98pb@sbcglobal.net Received: (qmail 35660 invoked from network); 25 Aug 2007 04:26:14 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=sbcglobal.net; h=Received:X-YMail-OSG:From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:Thread-Index:Importance:In-Reply-To; b=vDnJY+du5DB5SucKWCJvk46BvNs7yDArkPjvbalmS5BKZLNtdIsa6LMMWukMTdW/mzTMX61/He5Tm4SwuESUie7btQktxnUhod7fEq440ZVQz/Og75m2aT8fThQ8hdHj4QCMMDed4tcNt6oqhXRv4C6rv4YGblElqpHuS4p+UPQ= ; Received: from unknown (HELO Sam) (n98pb@sbcglobal.net@75.19.32.217 with login) by smtp117.sbc.mail.sp1.yahoo.com with SMTP; 25 Aug 2007 04:26:13 -0000 X-YMail-OSG: CmhPrw0VM1kG4DZ9YHDNdi559o_2AZ0ZFdGq_1wFHztbsoHH From: X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] ES Strut issues X-Original-Date: Fri, 24 Aug 2007 21:26:14 -0700 X-Original-Message-ID: <001301c7e6d0$13094870$0301a8c0@Sam> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0014_01C7E695.66AA7070" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6822 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 Thread-Index: AcfmkPj3hrYkg+yKSOudfs9D9ndtVwAPrVZA Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0014_01C7E695.66AA7070 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Jim Have you looked at your brake rotors? I had a shimmy in what I thought = was my nose wheel but found it to be the rotors deforming with braking, = (heat). Check them cold and they appeared perfect. Final success was to go the = high energy Cleveland brakes and replace the rotors. No problems for 300 = hours. Pat Brunner IVP =20 =20 -----Original Message----- From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of = Jim Scales Sent: Friday, August 24, 2007 1:53 PM To: lml@lancaironline.net Subject: [LML] ES Strut issues =20 I have just finished the annual on my Super ES. =20 I discovered a cracked engine mount within ten minutes of starting the inspection. =20 I have experienced the "ES Shake" since the plane was new. It now has = about 860 hours on it. I have done various things to the plane to address the problem through the years I have been flying it. Some things seem to improve it, some don't make a difference. The plane has never been = without the shake completely. The shake occurs at the same speed (30-32 knots) = on rollout after landing and while on the brakes. Releasing brake pressure makes the shake go away. =20 The following is a list of what I did the the plane during this annual, = and had done previously, to help or eliminate the shake: =20 -Strut rebuild and update by Lancair (second time) -Engine mount repair, update, reinforcement, inspection by Lancair -New Cleveland brake discs -Balance all tires and wheels -Balance nose wheel pant -Precisely align main gear both in toe and camber. -Shim main gear legs to reduce "play" between leg and mount. -Shim spindles to fit tightly to the gear legs =20 Test flight showed no noticeable improvement in the shake. =20 =20 My next step is to mount a camcorder on the plane so that I can see the landing gear and attempt to determine if the origin of the problem is = the nose wheel or the main gear. I am inclined to believe it is the main = gear. =20 I don't remember hearing anyone describe how the shake affects the = controls. The shake in my plane causes the stick to move front to rear in rapid cycles. The plane feels like the tail is jumping up and down. It would seem that a nose wheel shimmy would cause the plane to move side to = side. I don't think that is happening with mine. =20 I will post whatever I learn from the camcorder exercise. =20 In a related area, I don't recall hearing of or reading about what = Lancair has done to help with this situation. It is certainly possible that I = just missed that part. =20 It seems that, with a large percentage of the ES fleet exhibiting the = same issues under the same conditions, whatever they may be recommending is = not working. Perhaps they should do some more detective work (possibly = check out some of the planes that show the problems), and help with a fix. As = I said, maybe I missed the part where this had been done, but I don't = recall anyone ever mentioning to me that Lancair had discovered the source of = the problem and determined the things that need to be done to eliminate it. = It would be impossible for me to believe the Columbia has this same = problem. Wonder what is different. =20 I know that I have put in a great amount of time and no small amount of expense to correct it and it ain't happened. I gather from my = conversations with other builders that I am not alone in those categories. =20 Just thought I would share............. =20 Jim Scales Angel's Playmate =20 =20 =20 =20 ------=_NextPart_000_0014_01C7E695.66AA7070 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Jim

Have you looked at your brake = rotors?  I had a shimmy in what I thought was my nose wheel but found it to be the = rotors deforming with braking, (heat).  Check them cold and they appeared = perfect.  Final success was to go the high energy Cleveland brakes and replace the rotors.  No problems for 300 hours.

Pat Brunner

IVP

 

 

-----Original = Message-----
From: Lancair Mailing = List [mailto:lml@lancaironline.net] On = Behalf Of Jim Scales
Sent: Friday, August 24, = 2007 1:53 PM
To: = lml@lancaironline.net
Subject: [LML] ES Strut = issues

 

I have just finished the annual on my Super ES.

 <= /font>

I discovered a cracked engine mount within ten minutes of starting the inspection.

 <= /font>

I have experienced the "ES Shake" since the plane was new.  = It now has about 860 hours on it.  I have done various things to the plane = to address the problem through the years I have been flying it.  Some = things seem to improve it, some don't make a difference.  The plane has = never been without the shake completely.  The shake occurs at the same = speed (30-32 knots) on rollout after landing and while on the brakes.  = Releasing brake pressure makes the shake go away.

 <= /font>

The following is a list of what I did the the plane during this annual, and = had done previously, to help or eliminate the shake:

 <= /font>

-Strut rebuild and update by Lancair (second time)

-Engine mount repair, update, reinforcement, inspection by = Lancair

-New Cleveland brake discs

-Balance all tires and wheels

-Balance nose wheel pant

-Precisely align main gear both in toe and camber.

-Shim main gear legs to reduce "play" between leg and = mount.

-Shim spindles to fit tightly to the gear legs

 <= /font>

Test flight showed no noticeable improvement in the shake.  =

 <= /font>

My next step is to mount a camcorder on the plane so that I can see the = landing gear and attempt to determine if the origin of the problem is the nose = wheel or the main gear.  I am inclined to believe it is the main = gear.

 <= /font>

I don’t remember hearing anyone describe how the shake affects the controls.  The shake in my plane causes the stick to move front to = rear in rapid cycles.  The plane feels like the tail is jumping up and = down.  It would seem that a nose wheel shimmy would cause the plane to move = side to side.  I don’t think that is happening with = mine.

 <= /font>

I will post whatever I learn from the camcorder = exercise.

 <= /font>

In a related area, I don’t recall hearing of or reading about what = Lancair has done to help with this situation.  It is certainly possible = that I just missed that part.

 <= /font>

It seems that, with a large percentage of the ES fleet exhibiting the same = issues under the same conditions, whatever they may be recommending = is not working.  Perhaps they should do some more detective work = (possibly check out some of the planes that show the problems), and help with a fix.  As I said, maybe I missed the part where this had been = done, but I don’t recall anyone ever mentioning to me that Lancair had discovered the source of the problem and determined the things that = need to be done to eliminate it.  It would be impossible for me to = believe the Columbia has this same problem.  Wonder what is = different.

 <= /font>

I know that I have put in a great amount of time and no small amount of = expense to correct it and it ain't happened.  I gather from my = conversations with other builders that I am not alone in those = categories.

 <= /font>

Just thought I would share.............

 <= /font>

Jim Scales

Angel's Playmate

 <= /font>

 <= /font>

 <= /font>

 <= /font>

------=_NextPart_000_0014_01C7E695.66AA7070--