X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 15 Oct 2014 10:34:45 -0400 Message-ID: X-Original-Return-Path: Received: from nk11p08mm-asmtp002.mac.com ([17.158.58.247] verified) by logan.com (CommuniGate Pro SMTP 6.0.10) with ESMTPS id 7216151 for lml@lancaironline.net; Wed, 15 Oct 2014 09:04:43 -0400 Received-SPF: pass receiver=logan.com; client-ip=17.158.58.247; envelope-from=gw5@me.com Received: from [192.168.0.16] ([71.77.208.151]) by nk11p08mm-asmtp002.mac.com (Oracle Communications Messaging Server 7u4-27.10(7.0.4.27.9) 64bit (built Jun 6 2014)) with ESMTPSA id <0NDH00F8CLMQOE50@nk11p08mm-asmtp002.mac.com> for lml@lancaironline.net; Wed, 15 Oct 2014 13:04:05 +0000 (GMT) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.12.52,1.0.28,0.0.0000 definitions=2014-10-15_04:2014-10-15,2014-10-15,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=2 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1408290000 definitions=main-1410150122 From: George Wehrung Content-type: multipart/alternative; boundary="Apple-Mail=_8090BBEF-0D67-4634-B084-7071B55C9B63" X-Original-Message-id: <0376239B-921B-4253-AF32-B6B46938E344@me.com> MIME-version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) Subject: Re: [LML] Re: Safety wiring will pants X-Original-Date: Wed, 15 Oct 2014 09:04:02 -0400 References: X-Original-To: Lancair Mailing List In-reply-to: X-Mailer: Apple Mail (2.1878.6) --Apple-Mail=_8090BBEF-0D67-4634-B084-7071B55C9B63 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 That=92s a great idea Bill, Thanks. I am thinking of mounting a smaller head-drilled bolt aft of the main = bolt with a NyLock Nut and safety wire both bolts together. On Oct 14, 2014, at 3:12 PM, Bill Bradburry = wrote: > I too have lost one of these bolts. > I haven=92t done this, but you could drill a couple of 1/16 inch holes = in the wheel pant maybe =BD inch or so apart, aft of the bolt and run a = safety wire thru them. Alternatively, you could flox in a small loop of = safety wire just aft of the bolt that you could use as an attachment for = a safety wire. Similar to the way that the fuel drains in the wings are = safetied > =20 > Bill . > =20 > From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of = Skip Slater > Sent: Tuesday, October 14, 2014 9:38 AM > To: Lancair Mailing List > Subject: [LML] Re: Safety wiring will pants > =20 > When we built up my ES wheel pants, we bonded a large metal washer to = the outside of the bolt holes, then put filler on the sides to blend it = in and a couple of BID over it. The idea was to prevent stress from = cracking the fiberglass by creating a hard point and spreading the load. = It doesn't protect the paint - I put a flat washer under the bolt to do = that. I've also lost bolts and spacers twice, even though I preflight = exactly the same way Gary described; by wiggling the back end of the = pant to check for tightness on each walkaround. Even though I now put = Locktite on the ends of the threads, that bolt will still back it's way = out over time. I just found one loose the last time I went flying a = couple of days ago and it took about a turn and a half to get the bolt = tight again. > =20 > If I had it to do over again, I'd probably figure out a way to secure = the bolt because it's been a persistent issue.=20 > =20 > Skip Slater > From: Gary Casey > Sent: Tuesday, October 14, 2014 3:49 AM > To: Lancair Mailing List > Subject: [LML] Re: Safety wiring will pants > =20 > I have found that the bolt needs to be part of the preflight = inspection. Just wiggle the aft tip of the pant and if it moves, tighten = the bolt. I hesitate to really tighten it as it would crush the pant = material, so it's a judgement call. If you don't tighten it enough it = for sure will come loose. I'm guessing, but it seems like about 10 = ft-lbs is enough. One way to fix it would be to put a small (SS?) metal = plate on the surface screwed to the pant, maybe with one screw behind = the hole. Then put a star washer under the bolt head. Those bolt heads = bug me - they must be costing 2 knots! I was going to either build a = cavity in the pant to make them flush or to find a button head bolt. I = did neither. > Gary >=20 >=20 > I have lost my outer bolt and spacer two times now for my wheel pants = on the=3D > main gear. >=20 > Has anybody considered a way to safety wire the bolt to the wheel pant = the b=3D > olt to prevent loosing them inflight? >=20 > I just hope it didn't hit anybody. --Apple-Mail=_8090BBEF-0D67-4634-B084-7071B55C9B63 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252 That=92s= a great idea Bill, Thanks.

I am thinking of mounting = a smaller head-drilled bolt aft of the main bolt with a NyLock Nut and = safety wire both bolts = together.


On Oct 14, 2014, at = 3:12 PM, Bill Bradburry <bbradburry@verizon.net> = wrote:

I too have lost one of these = bolts.
I haven=92t done this, but you could = drill a couple of 1/16 inch holes in the wheel pant maybe =BD inch or so = apart, aft of the bolt and run a safety wire thru them.  = Alternatively, you could flox in a small loop of safety wire just aft of = the bolt that you could use as an attachment for a safety wire.  = Similar to the way that the fuel drains in the wings are = safetied
 
Bill = .
 
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Skip = Slater
Sent: Tuesday, October 14, 2014 = 9:38 AM
To: Lancair Mailing List
Subject: [LML] Re: Safety wiring = will pants
 
When we built up my ES wheel pants, we bonded a large metal = washer to the outside of the bolt holes, then put filler on the = sides to blend it in and a couple of BID over it.  The idea was to = prevent stress from cracking the fiberglass by creating a hard point and = spreading the load.  It doesn't protect the paint - I put a flat = washer under the bolt to do that.  I've also lost bolts and spacers = twice, even though I preflight exactly the same way Gary described; by = wiggling the back end of the pant to check for tightness on each = walkaround.  Even though I now put Locktite on the ends of the = threads, that bolt will still back it's way out over time.  I just = found one loose the last time I went flying a couple of days ago and it = took about a turn and a half to get the bolt tight = again.
 
If I had it to do over again, I'd probably = figure out a way to secure the bolt because it's been a persistent = issue. 
 
Skip = Slater
Sent: Tuesday, October 14, 2014 = 3:49 AM
Subject: [LML] Re: Safety wiring = will pants
 
I have found that the = bolt needs to be part of the preflight inspection. Just wiggle the aft = tip of the pant and if it moves, tighten the bolt. I hesitate to really = tighten it as it would crush the pant material, so it's a judgement = call. If you don't tighten it enough it for sure will come loose. I'm = guessing, but it seems like about 10 ft-lbs is enough. One way to fix it = would be to put a small (SS?) metal plate on the surface screwed to the = pant, maybe with one screw behind the hole. Then put a star washer under = the bolt head. Those bolt heads bug me - they must be costing 2 knots! I = was going to either build a cavity in the pant to make them flush or to = find a button head bolt. I did = neither.
Gary


I have lost my outer bolt and = spacer two times now for my wheel pants on the=3D
main = gear.

Has anybody = considered a way to safety wire the bolt to the wheel pant the = b=3D
olt to = prevent loosing them inflight?

I just hope it didn't hit = anybody.

= --Apple-Mail=_8090BBEF-0D67-4634-B084-7071B55C9B63--