Europa-List Digest Archive

Tue 02/09/10


Total Messages Posted: 7



Today's Message Index:
----------------------
 
     1. 12:03 AM - Re: Instrument module cooling/demisting (rparigoris)
     2. 02:22 AM - Re: Re: Instrument module cooling/demisting (David Joyce)
     3. 02:22 AM - Re: Mono wheel conversion (G-IANI)
     4. 03:04 AM - Re: Re: Instrument module cooling/demisting (G-IANI)
     5. 11:40 AM - Re: Mono wheel conversion (Duncan & Ami McFadyean)
     6. 01:35 PM - Re: Mono wheel conversion (G-IANI)
     7. 02:04 PM - Re: Instrument module cooling/demisting (david miller)
 
 
 


Message 1


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    Time: 12:03:22 AM PST US
    Subject: Re: Instrument module cooling/demisting
    From: "rparigoris" <rparigor@suffolk.lib.ny.us>
    Hi Mau11 "if you have pictures of fan cooling installation I am interested." I have a few different fans on order from Newark and Mouser to fool with. I will post details and pics once I get it all figured out. As far as GPS placement, we fooled tonight with reception and for certain having an aluminium backing on antenna makes for better reception (thanks Bud for suggesting reception is better with a groundplane). I found that specifications for antenna reception on Garmin 296 is in fact with a square 70CM groundplane installed. Anyway I am going to use the aluminium bracket that came with antenna, removed the suction cups and drilled 3 holes to make a 3 legged stool out of it. Then I screwed 3 drawer wood pull handles to the bracket (handles have metal inserts) and shaped to fit inside bottom of top port side of panel. Once I have my cooling fans installed I canl JB KWIK in place 3 wood standoffs for antenna mount. Once JB KWIK is cured (4 minutes) will put a flox/Aeropoxy/30 minute hardener fillet around wood standoffs. BTW we tested GPS reception tonight. We covered antenna with fiberglass (both epoxy and whatever ester instrument module is made out of), plexiglass and firewall pheonelic stuff. It degrades performance a little, but even covered with all this stuff as long as a groundplane was below antenna, reception was a tad better compared to the finger sized antenna connected direct to 296. Ron Parigoris Read this topic online here: http://forums.matronics.com/viewtopic.php?p=285573#285573


    Message 2


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    Time: 02:22:35 AM PST US
    From: "David Joyce" <davidjoyce@doctors.org.uk>
    Subject: Re: Instrument module cooling/demisting
    Ron, A single inexpensive fan mounted in the under surface of the shelf (where it is out of sight above the passenger's legs), with a row of holes under the windscreen on pilot's side, has worked well as both cooler & demister for me. Regards, David Joyce, G-XSDJ ----- Original Message ----- From: "rparigoris" <rparigor@suffolk.lib.ny.us> Sent: Tuesday, February 09, 2010 8:00 AM Subject: Europa-List: Re: Instrument module cooling/demisting > <rparigor@suffolk.lib.ny.us> > > Hi Mau11 > "if you have pictures of fan cooling installation I am interested." > I have a few different fans on order from Newark and Mouser to fool with. > I will post details and pics once I get it all figured out. > As far as GPS placement, we fooled tonight with reception and for certain > having an aluminium backing on antenna makes for better reception (thanks > Bud for suggesting reception is better with a groundplane). I found that > specifications for antenna reception on Garmin 296 is in fact with a > square 70CM groundplane installed. Anyway I am going to use the aluminium > bracket that came with antenna, removed the suction cups and drilled 3 > holes to make a 3 legged stool out of it. Then I screwed 3 drawer wood > pull handles to the bracket (handles have metal inserts) and shaped to fit > inside bottom of top port side of panel. Once I have my cooling fans > installed I canl JB KWIK in place 3 wood standoffs for antenna mount. Once > JB KWIK is cured (4 minutes) will put a flox/Aeropoxy/30 minute hardener > fillet around wood standoffs. > BTW we tested GPS reception tonight. We covered antenna with fiberglass > (both epoxy and whatever ester instrument module is made out of), > plexiglass and firewall pheonelic stuff. It degrades performance a little, > but even covered with all this stuff as long as a groundplane was below > antenna, reception was a tad better compared to the finger sized antenna > connected direct to 296. > Ron Parigoris > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=285573#285573 > > >


    Message 3


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    Time: 02:22:35 AM PST US
    From: "G-IANI" <g-iani@ntlworld.com>
    Subject: Mono wheel conversion
    Martin As others have said the tunnel is structurally important. The attached PDF shows the reduction I made on my aircraft. The important dimensions are the 5' and 7' shown in the section part of the drawing. I have the full engineering calculations which show that this leave plenty of strength in the tunnel. These dimensions could probable be reduced to 4' and 5' but I do not have calculations for these. I hope this helps Ian Rickard G-IANI XS Trigear, 280 hours Europa Club Mods Rep e-mail g-iani@ntlworld.com


    Message 4


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    Time: 03:04:53 AM PST US
    From: "G-IANI" <g-iani@ntlworld.com>
    Subject: Re: Instrument module cooling/demisting
    The attached is a view of the top of my panel. The fan works well as a demister and removes any excess heat from the panel The GPS aerial gets a very slightly better signal as it is not under the panel The mount on top is for the PCAS unit we have. I hope this might give you some ideas. BTW I have repainted it since this picture was taken. Ian Rickard G-IANI XS Trigear, 280 hours Europa Club Mods Rep e-mail g-iani@ntlworld.com


    Message 5


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    Time: 11:40:32 AM PST US
    From: "Duncan & Ami McFadyean" <ami@mcfadyean.freeserve.co.uk>
    Subject: Re: Mono wheel conversion
    Ian, Does this mod work for a monowheel-to-tri-gear conversion? Which would differ by having the monowheel cut-out still present (whether covered with a screwed-on non structural cover or not), or just for the tri-gear that has the underside still intact? I think this needs to be made clear. Rgds., Duncan McF. ----- Original Message ----- From: G-IANI To: europa-list@matronics.com Sent: Tuesday, February 09, 2010 10:00 AM Subject: RE: Europa-List: Mono wheel conversion Martin As others have said the tunnel is structurally important. The attached PDF shows the reduction I made on my aircraft. The important dimensions are the 5' and 7' shown in the section part of the drawing. I have the full engineering calculations which show that this leave plenty of strength in the tunnel. These dimensions could probable be reduced to 4' and 5' but I do not have calculations for these. I hope this helps Ian Rickard G-IANI XS Trigear, 280 hours Europa Club Mods Rep e-mail g-iani@ntlworld.com


    Message 6


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    Time: 01:35:46 PM PST US
    From: "G-IANI" <g-iani@ntlworld.com>
    Subject: Mono wheel conversion
    Duncan >From the calculations done by Barry Mellers the "floor" is of no consequence. So they are equally applicable to a Trigear, with or without an access panel or a converted Mono with a cover panel. The point to note is that the tunnel must still have a "top" on it. Ian Rickard G-IANI XS Trigear, 280 hours Europa Club Mods Rep (Trigear) e-mail g-iani@ntlworld.com _____ From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Duncan & Ami McFadyean Sent: 09 February 2010 19:38 Subject: Re: Europa-List: Mono wheel conversion Ian, Does this mod work for a monowheel-to-tri-gear conversion? Which would differ by having the monowheel cut-out still present (whether covered with a screwed-on non structural cover or not), or just for the tri-gear that has the underside still intact? I think this needs to be made clear. Rgds., Duncan McF. ----- Original Message ----- From: G-IANI <mailto:g-iani@ntlworld.com> Sent: Tuesday, February 09, 2010 10:00 AM Subject: RE: Europa-List: Mono wheel conversion Martin As others have said the tunnel is structurally important. The attached PDF shows the reduction I made on my aircraft. The important dimensions are the 5' and 7' shown in the section part of the drawing. I have the full engineering calculations which show that this leave plenty of strength in the tunnel. These dimensions could probable be reduced to 4' and 5' but I do not have calculations for these. I hope this helps Ian Rickard G-IANI XS Trigear, 280 hours Europa Club Mods Rep e-mail g-iani@ntlworld.com


    Message 7


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    Time: 02:04:04 PM PST US
    From: david miller <loboloda@execulink.com>
    Subject: Re: Instrument module cooling/demisting
    Hi Ron, It was a 2" fan, very similar to Ian's in respect to size and location, intended for cooling, de-misting was a secondary consideration. Dave On 8-Feb-10, at 5:12 PM, rparigor@suffolk.lib.ny.us wrote: > Hi Dave > "I doubt that you need that many, I've got just one small fan > installed, don't know how much air it moves, but it does quite a > good job of de-misting." > Thx. for the reply. About what size square is your single fan? The > ones I am interested in are 30mm square (less than 1+1/4"). > In addition to demisting, I want to keep some heat off of Becker > Com and Transponder, and off Dynon D10A. > Ron Parigoris > >




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