X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 30 [X] Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 24 Feb 2007 10:17:32 -0500 Message-ID: X-Original-Return-Path: Received: from alnrmhc12.comcast.net ([206.18.177.52] verified) by logan.com (CommuniGate Pro SMTP 5.1.6) with ESMTP id 1860033 for lml@lancaironline.net; Sat, 24 Feb 2007 09:22:50 -0500 Received-SPF: none receiver=logan.com; client-ip=206.18.177.52; envelope-from=bjburr@mwheli.com Received: from mountain0676a7 (c-24-10-172-111.hsd1.ut.comcast.net[24.10.172.111]) by comcast.net (alnrmhc12) with SMTP id <20070224142200b12009a575e>; Sat, 24 Feb 2007 14:22:01 +0000 From: "Bryan Burr" X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] Re: Fuel tank camera for inspection of Lancair fuel tanks X-Original-Date: Sat, 24 Feb 2007 07:21:50 -0700 X-Original-Message-ID: <001d01c7581f$2055c1b0$0400a8c0@mountain0676a7> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001E_01C757E4.73F6E9B0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_001E_01C757E4.73F6E9B0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit We all know what happened to Hoyt Flemming's airplane during a repainting project. The fuel tank was emptied and after sanding, and blowing the dust off with air there was flash and fire that ruined the airplane. Shortly thereafter I painted my airplane. I can honestly say that I was aware of the problem and paid particular attention to static buildup when working with the wings. The wings had been removed from the fuselage. I was amazed at how little effort it took to build a static charge. When polishing or buffing I could feel the static when the hair on my arms would stand up. So I made sure that the floor was wet and that I didn't go very long without doing something to eliminate the static. Especially around the fuel filler ports. I used the plastic inexpensive fuel caps and made sure the ports were sealed off with tape over the fuel caps. I also wiped the wings often with damp cloths. I made it through the painting process without any problems but I was nervous. Another option would be to paint the wings before any fuel is introduced to the system. During refueling I would think that if you devise a way to positively ground the fuel nozzle to the metal fuel filler port ring that this would be a good thing. I make sure the fuel nozzle is always touching the ring. In a carbon fiber airplane I would think that the nose gear strut or exhaust pipe would be a good point to attach the static cable in addition to the nozzle metal ring contact. In an ES there really is not a good place to ground the static cable. But FBO's have to attach it somewhere so I use the tow bar plate. Perhaps during building and closing the wing and sealing the fuel bays it may be a good idea to add a ground wire that attach to the metal ring and then to a common ground that ultimately connects to the engine/nose strut/tow bar plate etc. But after the wing is closed this is not going to happen. There has been some conversation on the Lanciar ES Yahoo group about using metal based primer and gaining conductivity for both ground handling and in flight static wick discharge. I don't know where this ever ended or what products were available. Bryan J. Burr N132BB -----Original Message----- From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of marv@lancair.net Sent: Saturday, February 24, 2007 5:40 AM To: lml@lancaironline.net Subject: [LML] Re: Fuel tank camera for inspection of Lancair fuel tanks Posted for cblitzer@triad.rr.com: So is there something we need to make sure the painters do if they are re-painting.?? I imagine that no painter would paint a wing with fuel in it - right? or do we want full fuel so there is no vapor - stupid question ?? Other than the front strut, what, where, how, else can you ground?? Is it as simple as no material under then plane and no dust removal with air? Craig Blitzer cblitzer@triad.rr.com -- For archives and unsub http://mail.lancaironline.net/lists/lml/ ------=_NextPart_000_001E_01C757E4.73F6E9B0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

We all know what happened to Hoyt = Flemming’s airplane during a repainting = project.  The fuel tank was emptied and = after sanding, and blowing the dust off with air there was flash and fire that = ruined the airplane.

 

Shortly thereafter I painted my airplane.  I can honestly = say that I was aware of the problem and paid particular attention to static buildup = when working with the wings.  = The wings had been removed from the fuselage.

 

I was amazed at how little effort = it took to build a static charge.  When polishing or buffing I could feel the static when the hair on my arms = would stand up.  So I made sure = that the floor was wet and that I didn’t go very long without doing = something to eliminate the static.  = Especially around the fuel filler ports.  I used the plastic inexpensive = fuel caps and made sure the ports were sealed off with tape over the fuel caps. =  I also wiped the wings often = with damp cloths.  I made it through = the painting process without any problems but I was nervous.  Another option would be to = paint the wings before any fuel is introduced to the = system.

 

During refueling I would think that = if you devise a way to positively ground the fuel nozzle to the metal fuel = filler port ring that this would be a good thing.  I make sure the fuel nozzle is always touching the ring.  

 

In a carbon fiber airplane I would = think that the nose gear strut or exhaust pipe would be a good point to attach = the static cable in addition to the nozzle metal ring contact.  In an ES there really is not a = good place to ground the static cable.  = But FBO’s have to attach it somewhere so I use = the tow bar plate.

 

Perhaps during building and closing = the wing and sealing the fuel bays it may be a good idea to add a ground = wire that attach to the metal ring and then to a common ground that ultimately = connects to the engine/nose strut/tow bar plate etc.  But after the wing is closed = this is not going to happen.

 

There has been some conversation on = the Lanciar ES Yahoo group about using metal based = primer and gaining conductivity for both ground handling and in flight static wick discharge.  I don’t = know where this ever ended or what products were = available.

 

Bryan J. = Burr

N132BB

 

 

 

-----Original = Message-----
From: Lancair Mailing = List [mailto:lml@lancaironline.net] On = Behalf Of marv@lancair.net
Sent: Saturday, February = 24, 2007 5:40 AM
To: = lml@lancaironline.net
Subject: [LML] Re: Fuel = tank camera for inspection of Lancair fuel tanks

 


Posted for cblitzer@triad.rr.com:

So is there something we need to make sure the painters do if they are =
re-painting.??
I imagine that no painter would paint a wing with fuel in it - right? =
or do we want full fuel so there is no vapor - stupid question ??
Other than the front strut, what, where, how, else can you ground??
Is it as simple as no material under then plane and no dust removal
with air?
Craig Blitzer
cblitzer@triad.rr.com


<= /font>

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