---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Fri 05/23/03: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:17 AM - Re: Re: Europa-List Digest: 15 Msgs - 05/21/03 (Brian Davies) 2. 04:22 AM - Re: Re: Europa-List Digest: 15 Msgs - 05/21/03 (Cripps, David) 3. 06:05 AM - Re: Re: Europa-List Digest: 15 Msgs - 05/21/03 (bizzarro@easynet.co.uk) 4. 06:52 AM - Re: Re: Europa-List Digest: 15 Msgs - 05/21/03 Radio Transcievers. (R.C.Harrison) 5. 08:14 AM - Static Charges and how to avoid them (Graham Singleton) 6. 09:06 AM - Re: Re: Icom IC A200 (Brian Davies) 7. 02:01 PM - Re: Sticky pre-skinned surfaces (Jeremy Davey) 8. 07:31 PM - Re: Static Charges and how to avoid them (Fred Fillinger) ________________________________ Message 1 _____________________________________ Time: 03:17:13 AM PST US From: "Brian Davies" Subject: Re: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 --> Europa-List message posted by: "Brian Davies" Having started this thread, I feel slightly responsible for this rather heated debate. I have done the research and this is the result:- All UK CAA equipment approvals are now carried out through the European JAA approval system. The CAA now has a website which contains the "AEARS Database" which has a search engine enabling you to check the approval of any particular bit of equipment. The website is very difficult to find, but I eventually found it at www.caa.co.uk/srg/airworthiness/aea/search.asp If you type in "VHF Comm" it will give you a list of all the VHF com manufacturers, and you can then look for a particular part number. This shows that the Icom AC-200 is approved under approval number LA301011. So, the equipment is approved, therefore it must work (or, at least pass the required safety standards). The issue for me is that it is one of the key systems on the aircraft and I want to be confident that I can get the necessary technical support if I get problems with the equipment or its installation. In the UK there seems to be a lack of support. Icom (UK) Ltd website even denies the existence of the unit! A pity, because it seems to be good value and those people that resolve the installation issues seem very happy with it. Brian Davies kit 454 ----- Original Message ----- From: "R.C.Harrison" Subject: RE: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 > --> Europa-List message posted by: "R.C.Harrison" > > Hi! Guys. > Just a "rider" to my previous info' on the ICOM unit. in the light of Graham > Singleton's message about the CAA approval and Nick Hammonds notes below. I > know not NOW from where my information came but I don't seek to pass > information on the basis of "hearsay" and was advised by someone in > authority perhaps PFA or their Inspector that the ICOM IC A200 wasn't now > authorised for new Installations. > Having offered that information in good faith I don't intend spending my > 'phone expense to verify or otherwise the facts. May I therefore suggest > that the folks who receive this information take the trouble to speak to the > Radiocommunications Agency Branch of the CAA before they spend their cash > possibly unwantonly. It's by the way that my experiences are that it's a > piece of "sh..." and that so called ICOM agents at Wolverhampton couldn't > adjust it to suit my installation nor would they fly in the a/c to try to > adjust it more suitably in working conditions and could only bench set it to > the written instructions with a shrug of the shoulders as to the likely > cause of the problem. > Regards > Bob Harrison G-PTAG > > -----Original Message----- > From: owner-europa-list-server@matronics.com > [mailto:owner-europa-list-server@matronics.com]On Behalf Of Nick Hammond > To: europa-list@matronics.com > Subject: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 > > > --> Europa-List message posted by: "Nick Hammond" > > > Brian, > > > --> Europa-List message posted by: "Brian Davies" > > > > Does any one know of a UK supplier for the Icom IC A200 transceiver? I > know > > I can get it from the US but it would be nice to have UK supplier support. > > > > Brian Davies kit 454 > > I have one of these but as yet no in-flight performance experience. The > issue of "approval" or otherwise will vary from country to country but > despite a fair amount of research I found nothing at all to confirm the > rumours. I suspect this is a typical piece of the "noise" (replicated by > well meaning people who like bad news and believe everything they hear) that > makes the Internet an unreliable source of information unless you apply a > reasonable degree of skepticism to the information content. > > The real bad news is that the technical support for the IC-A200 leaves a lot > to be desired. The radio is a good looking unit and includes very nice > features like a built in intercom and multiple audio inputs but the > documentation supplied with the unit is essentially an external wiring > diagram -- no application notes and no information on singal levels or even > the meaning of the abbreviations. I have checked all the Icom websites > (Europe, USA, Australia and Asia) and they have nothing useful. > > The local so-called "technical support" people have this documentation and > detailed repair manuals but no design guidance of any form and their view > was that nothing else would be available from other centres. In other words, > if you want anything but the most basic istallation, you are on your own. My > radio came with a partially complete kit but I try to steer of companies > with this sort of attitude. There are plenty of other good and relatively > inexpensive VHF Aircraft radios available. > > If you do decide to go ahead with the Icom unit and want to use some of the > features, let me know off list and I will share what I have been able to nut > out. > > Best regards, > > Nick > > ________________________________ Message 2 _____________________________________ Time: 04:22:25 AM PST US Subject: RE: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 From: "Cripps, David" --> Europa-List message posted by: "Cripps, David" I too have an AC-200 which works well in the Europa. I'm surprised by the comments of lack of tech support as I sent the unit back to ICOM UK in Kent only a year ago when a button came loose and I found the people there very helpful. They have also provided advise over the phone and at their stand at the PFA rally last year on how to twiddle the potentiometers in the radio body (underneath the silver sticky labels that cover the access holes in the case) in order to adjust the auto squelch levels, and they have provided other advise too on aerials etc. They have also fixed my handheld Icom on a number of occasions, including sending a part for me to fit myself to save on cost. I have had no problems with the Radiocomunications Agency (RA) getting the approvals each year for the renewal of the aircraft radio licence here in the UK. The contact I have at Icom(UK)is Jon Brooks, although I have spoken to several others there as well who have been helpful. Tel: 01227 741741 Fax: 01227 741742 e-mail:jonb@icomuk.co.uk Unit 9, Sea Street Herne Bay Kent CT6 8LD United Kingdom Hope this helps someone. David GBWJH -----Original Message----- From: Brian Davies [mailto:bdavies@dircon.co.uk] Subject: Re: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 --> Europa-List message posted by: "Brian Davies" Having started this thread, I feel slightly responsible for this rather heated debate. I have done the research and this is the result:- All UK CAA equipment approvals are now carried out through the European JAA approval system. The CAA now has a website which contains the "AEARS Database" which has a search engine enabling you to check the approval of any particular bit of equipment. The website is very difficult to find, but I eventually found it at www.caa.co.uk/srg/airworthiness/aea/search.asp If you type in "VHF Comm" it will give you a list of all the VHF com manufacturers, and you can then look for a particular part number. This shows that the Icom AC-200 is approved under approval number LA301011. So, the equipment is approved, therefore it must work (or, at least pass the required safety standards). The issue for me is that it is one of the key systems on the aircraft and I want to be confident that I can get the necessary technical support if I get problems with the equipment or its installation. In the UK there seems to be a lack of support. Icom (UK) Ltd website even denies the existence of the unit! A pity, because it seems to be good value and those people that resolve the installation issues seem very happy with it. Brian Davies kit 454 ----- Original Message ----- From: "R.C.Harrison" Subject: RE: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 > --> Europa-List message posted by: "R.C.Harrison" > > Hi! Guys. > Just a "rider" to my previous info' on the ICOM unit. in the light of Graham > Singleton's message about the CAA approval and Nick Hammonds notes below. I > know not NOW from where my information came but I don't seek to pass > information on the basis of "hearsay" and was advised by someone in > authority perhaps PFA or their Inspector that the ICOM IC A200 wasn't now > authorised for new Installations. > Having offered that information in good faith I don't intend spending my > 'phone expense to verify or otherwise the facts. May I therefore suggest > that the folks who receive this information take the trouble to speak to the > Radiocommunications Agency Branch of the CAA before they spend their cash > possibly unwantonly. It's by the way that my experiences are that it's a > piece of "sh..." and that so called ICOM agents at Wolverhampton couldn't > adjust it to suit my installation nor would they fly in the a/c to try to > adjust it more suitably in working conditions and could only bench set it to > the written instructions with a shrug of the shoulders as to the likely > cause of the problem. > Regards > Bob Harrison G-PTAG > > -----Original Message----- > From: owner-europa-list-server@matronics.com > [mailto:owner-europa-list-server@matronics.com]On Behalf Of Nick Hammond > To: europa-list@matronics.com > Subject: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 > > > --> Europa-List message posted by: "Nick Hammond" > > > Brian, > > > --> Europa-List message posted by: "Brian Davies" > > > > Does any one know of a UK supplier for the Icom IC A200 transceiver? I > know > > I can get it from the US but it would be nice to have UK supplier support. > > > > Brian Davies kit 454 > > I have one of these but as yet no in-flight performance experience. The > issue of "approval" or otherwise will vary from country to country but > despite a fair amount of research I found nothing at all to confirm the > rumours. I suspect this is a typical piece of the "noise" (replicated by > well meaning people who like bad news and believe everything they hear) that > makes the Internet an unreliable source of information unless you apply a > reasonable degree of skepticism to the information content. > > The real bad news is that the technical support for the IC-A200 leaves a lot > to be desired. The radio is a good looking unit and includes very nice > features like a built in intercom and multiple audio inputs but the > documentation supplied with the unit is essentially an external wiring > diagram -- no application notes and no information on singal levels or even > the meaning of the abbreviations. I have checked all the Icom websites > (Europe, USA, Australia and Asia) and they have nothing useful. > > The local so-called "technical support" people have this documentation and > detailed repair manuals but no design guidance of any form and their view > was that nothing else would be available from other centres. In other words, > if you want anything but the most basic istallation, you are on your own. My > radio came with a partially complete kit but I try to steer of companies > with this sort of attitude. There are plenty of other good and relatively > inexpensive VHF Aircraft radios available. > > If you do decide to go ahead with the Icom unit and want to use some of the > features, let me know off list and I will share what I have been able to nut > out. > > Best regards, > > Nick > > Visit SP at stand 1130 at Wind Power 2003, Austin, Texas, 18th-21st May ********************************************************************************************** All sales of goods are subject to the terms and conditions of sale (the Conditions) of SP Systems (the Company) which are available on request from the Company or may be viewed on our Website (http://www.spsystems.com). Any advice given by the Company in connection with the sale of goods is given in good faith but the company only warrants that advice in writing is given with reasonable skill and care. All advice is otherwise given subject to the Conditions. The contents of this message and any attachments are confidential and are intended solely for the attention and use of the addressee only. Information contained in this message may be subject to legal, professional or other privilege or may otherwise be protected by other legal rules. This message should not be copied or forwarded to any other person without the express permission of the sender. If you are not the intended recipient you are not authorised to disclose, copy, distribute or retain this message or any part of it. ________________________________ Message 3 _____________________________________ Time: 06:05:12 AM PST US From: bizzarro@easynet.co.uk Subject: RE: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 --> Europa-List message posted by: bizzarro@easynet.co.uk I thought that I might add what ICOM said to me at the PFA rally last year. Basically they are no longer supplying the A200 unit because it no longer meets the CAA spec. What happend was (according to ICOM rep) is that the CAA changed the requirements for radios and the old ICOM A200 no longer meets those requirements although if you already own one you can still get it licensed. ICOM are no longer providing the A200 because it no longer meets the requirements. I asked them if they were going to recertify the radio, and they said no because the UK market is not big enough to justify the cost. Cheers Ed Quoting "Cripps, David" : > --> Europa-List message posted by: "Cripps, David" > > > I too have an AC-200 which works well in the Europa. I'm surprised by the > comments of lack of tech support as I sent the unit back to ICOM UK in Kent > only a year ago when a button came loose and I found the people there very > helpful. They have also provided advise over the phone and at their stand at > the PFA rally last year on how to twiddle the potentiometers in the radio > body (underneath the silver sticky labels that cover the access holes in the > case) in order to adjust the auto squelch levels, and they have provided > other advise too on aerials etc. They have also fixed my handheld Icom on a > number of occasions, including sending a part for me to fit myself to save on > cost. > > I have had no problems with the Radiocomunications Agency (RA) getting the > approvals each year for the renewal of the aircraft radio licence here in the > UK. > > The contact I have at Icom(UK)is Jon Brooks, although I have spoken to > several others there as well who have been helpful. > > Tel: 01227 741741 > Fax: 01227 741742 > e-mail:jonb@icomuk.co.uk > > Unit 9, > Sea Street > Herne Bay > Kent CT6 8LD > United Kingdom > > Hope this helps someone. > > David > GBWJH > > > -----Original Message----- > From: Brian Davies [mailto:bdavies@dircon.co.uk] > To: europa-list@matronics.com > Subject: Re: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 > > > --> Europa-List message posted by: "Brian Davies" > > Having started this thread, I feel slightly responsible for this rather > heated debate. I have done the research and this is the result:- > > All UK CAA equipment approvals are now carried out through the European JAA > approval system. The CAA now has a website which contains the "AEARS > Database" which has a search engine enabling you to check the approval of > any particular bit of equipment. > > The website is very difficult to find, but I eventually found it at > www.caa.co.uk/srg/airworthiness/aea/search.asp > > If you type in "VHF Comm" it will give you a list of all the VHF com > manufacturers, and you can then look for a particular part number. This > shows that the Icom AC-200 is approved under approval number LA301011. > > So, the equipment is approved, therefore it must work (or, at least pass the > required safety standards). The issue for me is that it is one of the key > systems on the aircraft and I want to be confident that I can get the > necessary technical support if I get problems with the equipment or its > installation. In the UK there seems to be a lack of support. Icom (UK) Ltd > website even denies the existence of the unit! > > A pity, because it seems to be good value and those people that resolve the > installation issues seem very happy with it. > > Brian Davies kit 454 > ----- Original Message ----- > From: "R.C.Harrison" > To: > Subject: RE: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 > > > > --> Europa-List message posted by: "R.C.Harrison" > > > > > Hi! Guys. > > Just a "rider" to my previous info' on the ICOM unit. in the light of > Graham > > Singleton's message about the CAA approval and Nick Hammonds notes below. > I > > know not NOW from where my information came but I don't seek to pass > > information on the basis of "hearsay" and was advised by someone in > > authority perhaps PFA or their Inspector that the ICOM IC A200 wasn't now > > authorised for new Installations. > > Having offered that information in good faith I don't intend spending my > > 'phone expense to verify or otherwise the facts. May I therefore suggest > > that the folks who receive this information take the trouble to speak to > the > > Radiocommunications Agency Branch of the CAA before they spend their cash > > possibly unwantonly. It's by the way that my experiences are that it's a > > piece of "sh..." and that so called ICOM agents at Wolverhampton couldn't > > adjust it to suit my installation nor would they fly in the a/c to try to > > adjust it more suitably in working conditions and could only bench set it > to > > the written instructions with a shrug of the shoulders as to the likely > > cause of the problem. > > Regards > > Bob Harrison G-PTAG > > > > -----Original Message----- > > From: owner-europa-list-server@matronics.com > > [mailto:owner-europa-list-server@matronics.com]On Behalf Of Nick Hammond > > To: europa-list@matronics.com > > Subject: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 > > > > > > --> Europa-List message posted by: "Nick Hammond" > > > > > > Brian, > > > > > --> Europa-List message posted by: "Brian Davies" > > > > > > Does any one know of a UK supplier for the Icom IC A200 transceiver? I > > know > > > I can get it from the US but it would be nice to have UK supplier > support. > > > > > > Brian Davies kit 454 > > > > I have one of these but as yet no in-flight performance experience. The > > issue of "approval" or otherwise will vary from country to country but > > despite a fair amount of research I found nothing at all to confirm the > > rumours. I suspect this is a typical piece of the "noise" (replicated by > > well meaning people who like bad news and believe everything they hear) > that > > makes the Internet an unreliable source of information unless you apply a > > reasonable degree of skepticism to the information content. > > > > The real bad news is that the technical support for the IC-A200 leaves a > lot > > to be desired. The radio is a good looking unit and includes very nice > > features like a built in intercom and multiple audio inputs but the > > documentation supplied with the unit is essentially an external wiring > > diagram -- no application notes and no information on singal levels or > even > > the meaning of the abbreviations. I have checked all the Icom websites > > (Europe, USA, Australia and Asia) and they have nothing useful. > > > > The local so-called "technical support" people have this documentation and > > detailed repair manuals but no design guidance of any form and their view > > was that nothing else would be available from other centres. In other > words, > > if you want anything but the most basic istallation, you are on your own. > My > > radio came with a partially complete kit but I try to steer of companies > > with this sort of attitude. There are plenty of other good and relatively > > inexpensive VHF Aircraft radios available. > > > > If you do decide to go ahead with the Icom unit and want to use some of > the > > features, let me know off list and I will share what I have been able to > nut > > out. > > > > Best regards, > > > > Nick > > > > > > > Visit SP at stand 1130 at Wind Power 2003, Austin, Texas, 18th-21st May > > ******************************************************************************** ************** > All sales of goods are subject to the terms and conditions of sale (the > Conditions) > of SP Systems (the Company) which are available on request from the Company > or may be viewed on our Website (http://www.spsystems.com). > > Any advice given by the Company in connection with the sale of goods is given > > in good faith but the company only warrants that advice in writing is given > with > reasonable skill and care. All advice is otherwise given subject to the > Conditions. > > The contents of this message and any attachments are confidential and > are intended solely for the attention and use of the addressee only. > Information contained in this message may be subject to legal, > professional or other privilege or may otherwise be protected by other > legal rules. This message should not be copied or forwarded to any other > person without the express permission of the sender. If you are not the > intended recipient you are not authorised to disclose, copy, distribute > or retain this message or any part of it. > > > > > > > --------------------------------------------------- This mail sent through http://www.easynetdial.co.uk ________________________________ Message 4 _____________________________________ Time: 06:52:59 AM PST US From: "R.C.Harrison" Subject: RE: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 Radio Transcievers. --> Europa-List message posted by: "R.C.Harrison" Hi! Brian. No need to apologise friend especially when it's you looking for help. I understood your original request was for ICOM IC A200 and notice that you are now referring to ICOM AC 200 ? Don't suppose this is the "two stools" we are all falling between? Concerning the adjustments under the silver paper...... if the agents in Wolverhampton can only tweak them to certain levels within the regulations as per oscilloscope monitoring I guess that to regulate them "blind" may incur the wrath of the Radio Agency. But I'm only a novice who it has been suggested seems to "like bad news"! A useful item to have within the scope of the radio is two channel monitoring if you intend joining any group fly out events involving loose formation flying. The unit Ivor mentioned has that facility, you may wish to consider that since it would have been useful during our recent trip round Ireland. BTW ,Eddie Hatcher, thanks for the info which seems to substsntiate my position somewhat. Regards Bob Harrison G-PTAG -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com]On Behalf Of Brian Davies Subject: Re: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 --> Europa-List message posted by: "Brian Davies" Having started this thread, I feel slightly responsible for this rather heated debate. I have done the research and this is the result:- All UK CAA equipment approvals are now carried out through the European JAA approval system. The CAA now has a website which contains the "AEARS Database" which has a search engine enabling you to check the approval of any particular bit of equipment. The website is very difficult to find, but I eventually found it at www.caa.co.uk/srg/airworthiness/aea/search.asp If you type in "VHF Comm" it will give you a list of all the VHF com manufacturers, and you can then look for a particular part number. This shows that the Icom AC-200 is approved under approval number LA301011. So, the equipment is approved, therefore it must work (or, at least pass the required safety standards). The issue for me is that it is one of the key systems on the aircraft and I want to be confident that I can get the necessary technical support if I get problems with the equipment or its installation. In the UK there seems to be a lack of support. Icom (UK) Ltd website even denies the existence of the unit! A pity, because it seems to be good value and those people that resolve the installation issues seem very happy with it. Brian Davies kit 454 ________________________________ Message 5 _____________________________________ Time: 08:14:45 AM PST US From: Graham Singleton Subject: Europa-List: Static Charges and how to avoid them --> Europa-List message posted by: Graham Singleton At 23:56 22/05/2003 -0700, you wrote: >There's no possibility a static inside the vent tubing. Fuel vapor flow >does not cause static. Any fuel flowing in the vent line requires >bubbling or sufficient velocity for turbulent flow to cause any static >at all. In any case, the tiny I.D. of the tube should should be >insufficient surface area to store enough spark energy for ignition. >Bonding the outside metal tube to the filler cap will do no harm but >accomplish nothing that I can see. However, the metal tube will conduct any stored energy, and the flow of air and eventually fuel is very rapid. You can hear the hiss as it comes out, also see the convection of the dense vapour. I can't remember where the energy is stored in a capacitor, is it the metal or is it in the dielectric? I am looking for an understanding of what was observed, not trying to prove it can't happen. It did happen. Bonding the tube to the filler cap flange may well be a very good thing to do. Graham --- ________________________________ Message 6 _____________________________________ Time: 09:06:21 AM PST US From: "Brian Davies" Subject: Re: Europa-List: RE: Icom IC A200 --> Europa-List message posted by: "Brian Davies" Woops- just a typo. The approved unit is the Icom IC A200. Two channel monitoring is a good point. Brian ----- Original Message ----- From: "R.C.Harrison" Subject: RE: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 Radio Transcievers. > --> Europa-List message posted by: "R.C.Harrison" > > Hi! Brian. > No need to apologise friend especially when it's you looking for help. > I understood your original request was for ICOM IC A200 and notice that you > are now referring to ICOM AC 200 ? Don't suppose this is the "two stools" > we are all falling between? > -----Original Message----- > From: owner-europa-list-server@matronics.com > [mailto:owner-europa-list-server@matronics.com]On Behalf Of Brian Davies > To: europa-list@matronics.com > Subject: Re: Europa-List: RE: Europa-List Digest: 15 Msgs - 05/21/03 > > > --> Europa-List message posted by: "Brian Davies" > > Having started this thread, I feel slightly responsible for this rather > heated debate. I have done the research and this is the result:- > > All UK CAA equipment approvals are now carried out through the European JAA > approval system. The CAA now has a website which contains the "AEARS > Database" which has a search engine enabling you to check the approval of > any particular bit of equipment. > > The website is very difficult to find, but I eventually found it at > www.caa.co.uk/srg/airworthiness/aea/search.asp > > If you type in "VHF Comm" it will give you a list of all the VHF com > manufacturers, and you can then look for a particular part number. This > shows that the Icom AC-200 is approved under approval number LA301011. > > So, the equipment is approved, therefore it must work (or, at least pass the > required safety standards). The issue for me is that it is one of the key > systems on the aircraft and I want to be confident that I can get the > necessary technical support if I get problems with the equipment or its > installation. In the UK there seems to be a lack of support. Icom (UK) Ltd > website even denies the existence of the unit! > > A pity, because it seems to be good value and those people that resolve the > installation issues seem very happy with it. > > Brian Davies kit 454 > > ________________________________ Message 7 _____________________________________ Time: 02:01:26 PM PST US From: "Jeremy Davey" Subject: RE: Europa-List: Sticky pre-skinned surfaces --> Europa-List message posted by: "Jeremy Davey" I believe they are not 100% resistant to the epoxy systems - which is why rubber gloves are recommended for layups. That said, I don't wear latex gloves for extended periods (they are so easily torn anyway) so slow permeability to the surface contaminants is not really an issue as they simply would not have time to diffuse through. Is anyone out there an expert on latex or chemical protection who can comment? Regards, Jeremy Jeremy Davey Europa XS Monowheel 537M G-EZZA -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Paul Sweeting Subject: RE: Europa-List: Sticky pre-skinned surfaces --> Europa-List message posted by: Paul Sweeting Wasnt it mentioned latex gloves are permeable to the irritant or is this just the case for pvc based disposible gloves?? Cheers Paul. Paul Sweeting Europa XS Monowheel 558 -----Original Message----- From: Jeremy Davey [mailto:jeremycrdavey@btinternet.com] Subject: RE: Europa-List: Sticky pre-skinned surfaces --> Europa-List message posted by: "Jeremy Davey" John, All my Stage 1 components have this to one extent or other. Indeed, at the time we went into it in great depth with the factory and SP Systems (who make the resin). Apparently it is a result of contaminants emerging from the resin and reacting with water out of the atmosphere (which is exacerbated by slow hardener being used and tallies with your weather report) and will need to be cleaned up prior to finishing. It is not of structural significance. Having said it is not structurally significant, it is worth taking precautions for the sake of your health when handling these (and all) layups. I generally wear latex gloves when handling cured layups, or wash my hands promptly afterwards. I do not want to acquire an allergy for the sake of a few hundred disposable gloves and a little care. Regards, Jeremy Jeremy Davey Europa XS Monowheel 537M G-EZZA The contents of this email and any attachments are sent for the personal attention of the addressee(s) only and may be confidential. If you are not the intended addressee, any use, disclosure or copying of this email and any attachments is unauthorised - please notify the sender by return and delete the message. Any representations or commitments expressed in this email are subject to contract. ntl Group Limited ________________________________ Message 8 _____________________________________ Time: 07:31:55 PM PST US From: Fred Fillinger Subject: Re: Europa-List: Static Charges and how to avoid them --> Europa-List message posted by: Fred Fillinger >>There's no possibility a static inside the vent tubing. Fuel vapor flow >>does not cause static. Any fuel flowing in the vent line requires >>bubbling or sufficient velocity for turbulent flow to cause any static >>at all. > > However, the metal tube will conduct any stored energy, and the flow of air > and eventually fuel is very rapid. You can hear the hiss as it comes out, > also see the convection of the dense vapour. > I can't remember where the energy is stored in a capacitor, is it the metal > or is it in the dielectric? I am looking for an understanding of what was > observed, not trying to prove it can't happen. It did happen. > > Bonding the tube to the filler cap flange may well be a very good thing to do. > > Graham In a capacitor, the charge sits on the surface of the metal, just like static. esdjournal.com (as in electrostatic discharge) has a excellent explanation of how static charges are produced, and there's much which is not intuitive and even contrary to folklore. For example, it's rubbing unlike things against each other which produces static, right? Nope. As to vapor, in natural gas mains, it's not the flowing gas molecules which produce the static, it's the dirt particles in the gas bouncing off the walls of the pipe. I think the only important question is whether there's any protection method in a plastic airplane which will allow one to relax the rules for safe fueling practices. There's no harm in bonding only these two together, but if they are also tied the aircraft's electrical ground, it's back to the lightning-protection problem of flying an incendiary bomb. Regards, Fred F.