X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 28 Jun 2012 10:27:18 -0400 Message-ID: X-Original-Return-Path: Received: from elasmtp-mealy.atl.sa.earthlink.net ([209.86.89.69] verified) by logan.com (CommuniGate Pro SMTP 5.4.6) with ESMTP id 5628985 for lml@lancaironline.net; Wed, 27 Jun 2012 22:54:00 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.69; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=jrFeEjTtjIV3pzmr68MZiKfQxl8n1SWaVvqRtfZs7QmaxJRyhm79DtvoS9Jav3Rc; h=Received:From:Mime-Version:Content-Type:Subject:Date:In-Reply-To:To:References:Message-Id:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [70.105.247.254] (helo=[192.168.1.24]) by elasmtp-mealy.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1Sk4rB-0003nN-9w for lml@lancaironline.net; Wed, 27 Jun 2012 22:53:21 -0400 From: Colyn Case Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: multipart/alternative; boundary=Apple-Mail-359--379935454 Subject: Re: [LML] Re: LN2 queries X-Original-Date: Wed, 27 Jun 2012 22:53:20 -0400 In-Reply-To: X-Original-To: "Lancair Mailing List" References: X-Original-Message-Id: X-Mailer: Apple Mail (2.1084) X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da9407cc42467f09bbd8953b9e1ddc49ab827350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 70.105.247.254 --Apple-Mail-359--379935454 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 ...just trying to work this out in my mind. I can think of two types of fueling risks: 1) The airplane has a charge on it when you bring it to the pumps. If = it were a spam can, the airplane would lose that charge when you attach = the grounding cable somewhere. The risk would be that the fuel nozzle = itself is the fastest path to ground when it gets near the tank area. = Having the filler bonded to wherever you attach the ground cable from = the pump would be a help on that wouldn't it? 2) The fuel nozzle develops a charge as the fuel flows through it. In = this case again, wouldn't it help if the fuel filler were bonded to = where the ground cable is? On Jun 27, 2012, at 6:41 PM, CavittP wrote: When we're having low humidity I always use a damp rag around filler = opening and make certain nozzle is touching the rag before beginning to = pump fuel. =20 Pete Cavitt - N320PL +1-619-701-0784 Cell www.petecavitt.com On Jun 27, 2012, at 9:55, Sky2high@aol.com wrote: > Ron, > =20 > Randy is correct. > =20 > Grayhawk > =20 > PS I stand back at each refueling after the line person attaches his = ground to the nose gear or exhaust. That takes care of grounding to the = electrical system which is only connected to electrical things. I worry = more about the induced static indication from the AM radio playing in = the hangar while I am waxing the fuel carrying wings. Just don't brush = your dog when the relative humidity is below 20% while sticking your = free finger in the wing tank. > =20 > In a message dated 6/27/2012 8:51:44 A.M. Central Daylight Time, = randylsnarr@yahoo.com writes: > Ron, it is pointless to try and ground a fiberglass airplane. I would = bet 99 percent of the non carbon lancairs are flying with no grounding. = I have never heard of anyone having a problem.. > Keep it light and leave it off.. > Randy Snarr >=20 > Sent from my iPhone >=20 > On Jun 25, 2012, at 6:27 AM, "Stevens Family" = wrote: >=20 >> Another couple of queries for those who have built the L320/360 = aircraft. >>=20 >> =20 >>=20 >> 1. I notice that the instructions make no mention of earthing = the fuel filler on the header tank. On my kit, which I purchased partly = built with the wings completed, I notice that all the metal parts of the = wing tanks are electrically bonded, including the fuel filler port = inserts. However in the instructions for building the header tank, there = is no mention of bonding the filler port. It would be quite simple to do = with some copper bonding strap glassed into the inside of the forward = deck, and passing through the flox bond where the tank is bonded to the = forward deck. What has everyone else done? >>=20 >> 2. I am researching the firewall forward part of the manual, = and notice they talk about using 2 layers of fibrefax behind the = stainless steel fire shield which covers the firewall, all bonded into = place with =93 high temperature silicone=94. As this section of my = construction manual is dated 1994, I am wondering whether this is still = the recommended process, or have fibrefax and high temperature silicone = been superceded by something more up to date. >>=20 >> =20 >>=20 >> I appreciate any suggestions offered. >>=20 >> =20 >>=20 >> Regards, >>=20 >> =20 >>=20 >> Rob Stevens >>=20 >> Perth, >>=20 >> Western Australia. >>=20 >> =20 >>=20 > =3D --Apple-Mail-359--379935454 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252
When = we're having low humidity I always use a damp rag around filler opening = and make certain nozzle is touching the rag before beginning to pump = fuel.  

Pete Cavitt - N320PL
+1-619-701-0784 = Cell

On Jun 27, 2012, at 9:55, Sky2high@aol.com = wrote:

Ron,
 
Randy is correct.
 
Grayhawk
 
PS I stand back at each refueling after the line person attaches = his ground=20 to the nose gear or exhaust.  That takes care of grounding to the=20= electrical system which is only connected to electrical things.  I = worry=20 more about the induced static indication from the AM radio = playing in the=20 hangar while I am waxing the fuel carrying wings.  Just don't brush = your=20 dog when the relative humidity is below 20% while sticking your = free finger=20 in the wing tank.
 
In a message dated 6/27/2012 8:51:44 A.M. Central Daylight Time,=20 randylsnarr@yahoo.com = writes:
Ron, it is pointless to try and ground a fiberglass airplane. I = would bet=20 99 percent of the non carbon lancairs are flying with no grounding. I = have=20 never heard of anyone having a problem..
Keep it light and leave it=20= off..
Randy Snarr

Sent from my iPhone

On Jun 25, 2012, at 6:27 AM, "Stevens Family" <stevens5@swiftdsl.com.au>=20= wrote:

Another couple of = queries for those who have built the=20 L320/360 aircraft.

 

1.      =20 I notice that the instructions make no mention of = earthing the=20 fuel filler on the header tank. On my kit, which I purchased partly = built=20 with the wings completed, I notice that all the metal parts of the = wing=20 tanks are electrically bonded, including the fuel filler port = inserts.=20 However in the instructions for building the header tank, there is = no=20 mention of bonding the filler port. It would be quite simple to do = with some=20 copper bonding strap glassed into the inside of the forward deck, = and=20 passing through the flox bond where the tank is bonded to the = forward deck.=20 What has everyone else done?

2.      =20 I am researching the firewall forward part of the = manual, and=20 notice they talk about using 2 layers of fibrefax behind the = stainless steel=20 fire shield which covers the firewall, all bonded into place with =93 = high=20 temperature silicone=94. As this section of my construction manual = is dated=20 1994, I am wondering whether this is still the recommended process, = or have=20 fibrefax and high temperature silicone been superceded by something = more up=20 to date.

 

I appreciate any suggestions = offered.

 

Regards,

 

Rob = Stevens

Perth,

Western Australia.

 

=3D

= --Apple-Mail-359--379935454--