X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 30 Nov 2011 06:22:45 -0500 Message-ID: X-Original-Return-Path: Received: from qmta06.emeryville.ca.mail.comcast.net ([76.96.30.56] verified) by logan.com (CommuniGate Pro SMTP 5.4.2) with ESMTP id 5264257 for lml@lancaironline.net; Tue, 29 Nov 2011 21:37:25 -0500 Received-SPF: none receiver=logan.com; client-ip=76.96.30.56; envelope-from=rob@robmurawski.com Received: from omta12.emeryville.ca.mail.comcast.net ([76.96.30.44]) by qmta06.emeryville.ca.mail.comcast.net with comcast id 3EWa1i0090x6nqcA6EcjAy; Wed, 30 Nov 2011 02:36:43 +0000 Received: from wintermute.rob-home.local. ([76.120.176.49]) by omta12.emeryville.ca.mail.comcast.net with comcast id 3Ed91i00l14KV5G8YEdAAT; Wed, 30 Nov 2011 02:37:11 +0000 Received: from darkside (darkside.rob-home.local [192.168.0.50]) by wintermute.rob-home.local. (8.14.4/8.14.4) with ESMTP id pAU2aeq0004370 for ; Tue, 29 Nov 2011 21:36:40 -0500 From: "Rob Murawski" X-Original-To: "'Lancair Mailing List'" References: In-Reply-To: Subject: RE: [LML] Re: LNC2 Nose gear gas strut X-Original-Date: Tue, 29 Nov 2011 21:36:39 -0500 X-Original-Message-ID: <002301ccaf08$e32b0bb0$a9812310$@com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0024_01CCAEDE.FA5503B0" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Acyuu4f10T0avgbiQdaImICbHHv6eAAS4bGg Content-Language: en-us X-boxedgarlic-MailScanner-Information: Please contact the ISP for more information X-MailScanner-ID: pAU2aeq0004370 X-boxedgarlic-MailScanner: Found to be clean X-boxedgarlic-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=-0.998, required 6, autolearn=disabled, ALL_TRUSTED -1.00, HTML_MESSAGE 0.00, WEIRD_PORT 0.00) X-boxedgarlic-MailScanner-From: rob@robmurawski.com MailScanner-NULL-Check: 1323225401.50299@lNcsjZuIBs/FEGhHzmmA6w This is a multi-part message in MIME format. ------=_NextPart_000_0024_01CCAEDE.FA5503B0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Thanks all! Since these are only AN3 bolts, I guess the head really isn't that big. 1-2 layers of fiberfrax seems to be all they take up and it's a fairly small area. I have the holes drilled and everything seems to line up, so I just need to pot them in and I'm good to go. I'm at a little bit more than the required 3/8" compression at full gear extension because I didn't want to go short, but that shouldn't matter. Also, I checked my gas strut and it seems like it is still good after about 12 years. I need to put a significant portion of my body weight into it to get it to compress and I definitely weigh more than 100 lbs. Unfortunately, as soon as I put some weight on my ESCO nose gear strut, it dumped oil like a sieve. As soon as I finish the nose gear attachments, I guess I'll have to send it out for service. And, of course, all of this needs to be checked again at final assembly. Thanks, -Rob From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Elliott Rowan Sent: Tuesday, November 29, 2011 12:23 PM To: lml@lancaironline.net Subject: [LML] Re: LNC2 Nose gear gas strut Rob, There is plenty of thickness in the fiberfrax to pot the bolts in, and not interfere with the stainless. I had to relieve the aft two layers on mine. Make sure to check the pressure on the cylinder before final install. That top bolt is a real pain to get to. Mine is weak, (it's only twenty years old) and will be replaced before final assembly. If memory serves, it is a 100 lb cylinder. Elliott Rowan From: "Sky2high@aol.com" To: lml@lancaironline.net Sent: Monday, November 28, 2011 3:51 PM Subject: [LML] Re: LNC2 Nose gear gas strut Rob, Check the uncompressed thickness of the three layers of fiberfrax (ceramic fireproofing between the SS and the firewall - it may be thick enough to merely cut some out where the bolt heads are located. Also, slight countersinking of the bolt head makes for better potting (more secure). Scott Krueger In a message dated 11/28/2011 9:53:33 A.M. Central Standard Time, rob@robmurawski.com writes: I'm at the point where I'm ready to attach my gas strut to the nose gear strut on my 360. The manual states that the preferred way is to pot the two bolts into the firewall and cover with 1 BID. This sounds easy enough, but, from what I can tell, the firewall won't be flat any more at this area. These are bolts, so they can't really be countersunk. There is an alternate connection method which is to go through the stainless and be on the other side of the firewall. This doesn't sound as nice as the first method. Someone else mentioned to me about connecting the gas strut to the top of the wheel well, but I'm concerned about this changing the angle and force. It looks like this would physically fit if I shim it with some phenolic. Does anyone remember what they did to connect their gas strut? Does it matter if the firewall is no longer flat? Thanks, -Rob -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html ------=_NextPart_000_0024_01CCAEDE.FA5503B0 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Thanks all!  Since these are only AN3 bolts, I guess the head = really isn’t that big.  1-2 layers of fiberfrax seems to be = all they take up and it’s a fairly small area.  I have the = holes drilled and everything seems to line up, so I just need to pot = them in and I’m good to go.  I’m at a little bit more = than the required 3/8” compression at full gear extension because = I didn’t want to go short, but that shouldn’t = matter.

 

Also, I checked my gas strut and it seems like it is still good after = about 12 years.  I need to put a significant portion of my body = weight into it to get it to compress and I definitely weigh more than = 100 lbs.  Unfortunately, as soon as I put some weight on my ESCO = nose gear strut, it dumped oil like a sieve.  As soon as I finish = the nose gear attachments, I guess I’ll have to send it out for = service.

 

And, of course, all of this needs to be checked again at final = assembly.

 

Thanks,

 

-Rob

 

From:= = Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of = Elliott Rowan
Sent: Tuesday, November 29, 2011 12:23 = PM
To: lml@lancaironline.net
Subject: [LML] Re: LNC2 = Nose gear gas strut

 

Rob,

  There is plenty of thickness in the = fiberfrax to pot the bolts in, and not interfere with the stainless. I = had to relieve the aft two layers on mine. Make sure to check the = pressure on the cylinder before final install. That top bolt is a real = pain to get to. Mine is weak, (it's only twenty years old) and will be = replaced before final assembly. If memory serves, it is a 100 lb = cylinder.

 

Elliott Rowan

 

F= rom: = "Sky2high@aol.com" = <Sky2high@aol.com>
To: = lml@lancaironline.net =
Sent: Monday, November 28, 2011 3:51 PM
Subject: = [LML] Re: LNC2 Nose gear gas strut

R= ob,

&= nbsp;

C= heck the uncompressed thickness of the three layers of fiberfrax = (ceramic fireproofing between the SS and the firewall - it may be thick = enough to merely cut some out where the bolt heads are = located.  Also, slight countersinking of the bolt head makes for = better potting (more secure).

&= nbsp;

S= cott Krueger

&= nbsp;

I= n a message dated 11/28/2011 9:53:33 A.M. Central Standard Time, rob@robmurawski.com = writes:

I= 'm at the point where I'm ready to attach my gas strut to the nose = gear
strut on my 360. The manual states that the preferred way is to = pot the two
bolts into the firewall and cover with 1 BID.  This = sounds easy enough, but,
from what I can tell, the firewall won't be = flat any more at this area.
These are bolts, so they can't really be = countersunk.  There is an alternate
connection method which is = to go through the stainless and be on the other
side of the = firewall.  This doesn't sound as nice as the first = method.

Someone else mentioned to me about connecting the gas = strut to the top of
the wheel well, but I'm concerned about this = changing the angle and force.
It looks like this would physically fit = if I shim it with some phenolic.

Does anyone remember what they = did to connect their gas strut?  Does it
matter if the firewall = is no longer flat?

Thanks,

-Rob



--
For = archives and unsub http://mail= .lancaironline.net:81/lists/lml/List.html

 

------=_NextPart_000_0024_01CCAEDE.FA5503B0--