Europa-List Digest Archive

Sun 02/22/09


Total Messages Posted: 13



Today's Message Index:
----------------------
 
     1. 02:09 AM - Re: Rigging/Derigging (Roland)
     2. 03:36 AM - Vacuum Regulator adjustment? (Robert C Harrison)
     3. 08:26 AM - Thermal characteristics: Epoxy vs Vinylester (rampil)
     4. 08:38 AM - Re: Re: Strobe wiring (Frans Veldman)
     5. 09:03 AM - Re: Re: Strobe wiring (Rowland Carson)
     6. 09:51 AM - Re: Re: Strobe wiring (Fred Klein)
     7. 09:54 AM - Re: Comm Antenna installation (Fred Klein)
     8. 10:28 AM - Re: Comm Antenna installation (Jeff B)
     9. 11:06 AM - AOA  (Rick Stockton)
    10. 02:15 PM - Re: Coolant temperature indicator (Graham Singleton)
    11. 02:38 PM - SV: Coolant temperature indicator (Sidsel og Svein Johnsen)
    12. 02:49 PM - Re: Mod 72 Reamer (Greg Fuchs)
    13. 06:22 PM - Re: LED LANDING LIGHTS (rparigoris)
 
 
 


Message 1


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    Time: 02:09:39 AM PST US
    Subject: Re: Rigging/Derigging
    From: "Roland" <schmidtroland@web.de>
    Thanks a lot for telling your experiences, that make me quite optimistic that my plan will work out in real life. Since I will buy a used aircraft, I won't have any influence on on the building process. It seems to me, like I should then set one focus on the rigging, though some mods are retrofittable. Richard, thanks for your offer, but I'm looking for a european registrated XS Trigear and not by now. Happy landings Roland[/quote] Visit - www.EuropaOwners.org


    Message 2


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    Time: 03:36:03 AM PST US
    From: "Robert C Harrison" <ptag.dev@tiscali.co.uk>
    Subject: Vacuum Regulator adjustment?
    Hi! all I'm needing to adjust my vacuum system to increase the vacuum. Can anyone tell me which way to adjust the regulator screw? My inclination is to screw it out thereby increasing the flow for the vacuum pump to drag since the regulator is the last in line to the pump. Is this correct ? Regards Bob Harrison G-PTAG


    Message 3


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    Time: 08:26:14 AM PST US
    Subject: Thermal characteristics: Epoxy vs Vinylester
    From: "rampil" <ira.rampil@gmail.com>
    This topic came up recently in regard the an engine cooling shroud. The table I enclose is from a college text on Composite Engineering and would seem to indicate that epoxies have higher operating temps than esters and vinylesters. Anyone know specifically which ester system Europa used in its moldings? -------- Ira N224XS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=231497#231497 Attachments: http://forums.matronics.com//files/optemps_142.png


    Message 4


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    Time: 08:38:19 AM PST US
    From: Frans Veldman <frans@paardnatuurlijk.nl>
    Subject: Re: Strobe wiring
    rampil wrote: > > Come now Ron, > > Don't you remember the total lack of noise on my radios also? > I have a Whelan comet flash too. Because of the discussion about strobe noise, I got slightly worried so I decided to test my setup, which was just finished. I was particularly worried since I have a high power strobe, with one strobe bulb on the fin, just a short distance away from the antenna... So, today was strobe testing day. I have an AVI-PAK strobe power supply, probably the most powerfull strobe unit available (51.5 joules / 70 Watts). Mounted under the ceiling just behind the D-panel. I have three strobes: one on the fin, and two at the wingtips. The one on the fin gets the most power, it alternates with the wingtip strobes which share the power together. Radio is a Garmin (Apollo) SL-30, plus a Vertex handheld. Antenna is home-built, mounted in the fin, quite similar to the Europa-antenna, but just a little bit more broadband. The wiring for the strobes: From the strobe power supply directly via the top to the fin. For the wingtips, the wiring goes via the back of the doors to the rear wing pin, where I have installed a connector. The rest of the cables of the airplane (including coax) are located on the bottom. Results: Strobes at full power did not break the squelch. Neither on the Garmin SL-30, neither on the Vertex handheld radio. Next test was with squelch open. Strobe system was not audible at all. NAV system (VOR and glidescope) could not be tested as there is no VOR within receiving distance. So far I'm happy with the result. :-D I think the key of all this is: 1) Proper shielding of the cables. All strobe lines are shielded at the housing of the strobe power supply, and nowhere else (also not at the end near the strobe bulbs). 2) Keeping the setup symmetrical (hence the location underneath the center of the top). 3) Keep coax and strobe cables as far as possible separated. 4) Ground and power leads for the strobe are not shared with anything else. Even the navigation lamps (same housing as strobes) have their own power leads, which follow a different routing than the strobe cables. 5) Make sure the antenna is tuned properly, and the coax cable properly RF-decoupled. About the latter: I have the coax cable run through torroids near the antenna, and near the rear bulkhead I have some of the cable tightly coiled up (ten turns) on a lightweight 5cm plastic tube. This to block any RF travelling on the outer part of the coax. This blocks radiation inside the airplane, and also reduces sensitivity for noise generated inside the airplane. I think decoupling near the antenna is not enough, as the coax will pick up RF again just behind the torroids because of its close distance to the antenna. Hence the additional coil near the rear bulkhead. -- Frans Veldman


    Message 5


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    Time: 09:03:26 AM PST US
    From: Rowland Carson <rowil@clara.net>
    Subject: Re: Strobe wiring
    At 2009-02-22 17:36 +0100 Frans Veldman wrote: >I have the coax cable run through torroids near the >antenna, and near the rear bulkhead I have some of the cable tightly >coiled up (ten turns) on a lightweight 5cm plastic tube Frans - what type of cable are you using? I understand some coax will not like a bend radius as tight as 25mm. I appreciate your thorough description of your installation and the good results it gives. regards Rowland -- | Rowland Carson http://home.clara.net/rowil/ | <rowil@clara.net> ... that's Rowland with a 'w' ...


    Message 6


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    Time: 09:51:23 AM PST US
    From: Fred Klein <fklein@orcasonline.com>
    Subject: Re: Strobe wiring
    Frans...thank you for your clear description of your system and its performance. On Feb 22, 2009, at 8:36 AM, Frans Veldman wrote: > > I have three strobes: one on the fin, and two at the wingtips. The one > on the fin gets the most power, > > The wiring for the strobes: From the strobe power supply directly via > the top to the fin. > 4) Ground and power leads for the strobe are not shared with anything > else. Even the navigation lamps (same housing as strobes) have their > own > power leads, which follow a different routing than the strobe cables. Did you separate the strobe wiring for your wingtip from that for your position lights? Do you then have separate connectors for your strobes and position lights at the wing root? I too have a tail strobe...a nice little combo (strobe/LED position) unit from Kuntzelmann. It came with 25 feet of 5 wire shielded cable... 3 for the strobe; 2 for the LEDs... You seem to be suggesting that it would be best practice to toss the 5 wire cable and use separate 3 wire shielded for the strobe and route it separate from the position light wiring. Please confirm, Fred A194 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.


    Message 7


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    Time: 09:54:25 AM PST US
    From: Fred Klein <fklein@orcasonline.com>
    Subject: Re: Comm Antenna installation
    On Jan 22, 2009, at 7:20 AM, Jeff B wrote: > I installed the Bob Archer "Big E" toward the rear of the fuse, on > the port side. Always had great reception... Hey Jeff, Did you bend the "Big E" to the radius of the fuselage, or did you fabricate some kind of internal vertical fin so as to have the antenna maintain its verticality? Fred -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.


    Message 8


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    Time: 10:28:32 AM PST US
    From: Jeff B <topglock@cox.net>
    Subject: Re: Comm Antenna installation
    Arched it to fit the inside of the fuse and glassed it in. It's just aft of the mass balance weight in the port side. Jeff Fred Klein wrote: > > > On Jan 22, 2009, at 7:20 AM, Jeff B wrote: > >> I installed the Bob Archer "Big E" toward the rear of the fuse, on the >> port side. Always had great reception... > > Hey Jeff, > > Did you bend the "Big E" to the radius of the fuselage, or did you > fabricate some kind of internal vertical fin so as to have the antenna > maintain its verticality? > > Fred > > > > ------------------------------------------------------------------------ > > > Checked by AVG - www.avg.com >


    Message 9


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    Time: 11:06:13 AM PST US
    From: Rick Stockton <aireupora@sbcglobal.net>
    Subject: AOA
    I remember reading some of the comments about having an AOA installed in th e airplane and I have been seriously looking at the MLG Odyssey unit for my plane.- I notice for the first time that it come with an AOA, but does n ot include it in the kit.- It appears to be two hoses that connect behind the unit.- - The question-I have is what unit/manafactor would be good with this unit. - I see that Europa has one for 99 pounds/141 USD, but that includes ever ything.- I searched the web and I'm seeing prices from 141 to over five h undred dollars.- I think it is only a tube between the leading edge and t he bottom of the wing.- - Anybody have any suggestions?


    Message 10


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    Time: 02:15:00 PM PST US
    From: Graham Singleton <grahamsingleton@btinternet.com>
    Subject: Re: Coolant temperature indicator
    Paul McAllister wrote: > If your airplane isn't flying yet, then the effort is a lot less, if > it were me I'd probably just go do it. > > Regards, Paul So would I! Pity Rotax and Europa didn't warn us about the boiling point of 50/50 glycol too :-( Graham


    Message 11


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    Time: 02:38:39 PM PST US
    From: "Sidsel og Svein Johnsen" <sidsel.svein@oslo.online.no>
    Subject: Coolant temperature indicator
    - and so did I, and connected it to Grand Rapids EIS, one of the spare input channels. It took some trial and error, with the sensor immersed in boiling hot water and at lower temperature, to find the two parameters to insert into the GR for fairly accurate reading (not linear output over the entire range, so the upper one is the more important, of course). I inserted the T with the sensor in the coolant hose going from top of the aft right cylinder (the highest CHT on my 912 ULS) to the black collector tank on top of the engine. I operate on 50/50 water/glycol, and it is nice to have a good read on the coolant temperature, even though only from one cylinder. It will very quickly pick up any malfunction in the common cooling system. Svein LN-SKJ _____ Fra: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] P=E5 vegne av danny shepherd Sendt: 20. februar 2009 19:26 Til: europa-list@matronics.com Emne: Re: Europa-List: Coolant temperature indicator Hi Frans, I fitted a coolant temperature gauge from Skydrive UK. skydrive.co.uk The complete kit was about 50 UK pounds. Works very well. Danny G-c.e.r.i


    Message 12


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    Time: 02:49:46 PM PST US
    From: "Greg Fuchs " <gregoryf.flyboy@comcast.net>
    Subject: Mod 72 Reamer
    Thanks Paul, I will contact you offsite. Regards, Greg _____ From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Paul Boulet Sent: Saturday, February 21, 2009 2:32 PM Subject: RE: Europa-List: Mod 72 Reamer It looks like you're it! I had my mod professionally done by Phoenix Composites...cost me plenty but certainly had no headaches. Send me the $5 and I'll post it out same day Paul Boulet 20512 Little Rock Way Malibu, CA 90265 --- On Fri, 2/20/09, Greg Fuchs <gregoryf.flyboy@comcast.net> wrote: From: Greg Fuchs <gregoryf.flyboy@comcast.net> Subject: RE: Europa-List: Mod 72 Reamer Keep me in mind when finished, I could use it anytime soon as well. The mod has been sitting around in a plastic bag for quite awhile now, and I should get them installed. Regards, Greg Fuchs A050 Do not archive _____ From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Paul Boulet Sent: Thursday, February 19, 2009 7:40 PM Subject: Re: Europa-List: Mod 72 Reamer I have one. Send me the $5 for postage and I'll send it out right away. Paul Boulet 20512 Little Rock Way Malibu , CA 90265-5324 I am in need of the Mod 72 reamer. I have seen several change hands from the group. Does anyone have one they would make available to me. I will pass it on after I use it. Thanks, Bill McClellan A164 arget=_blank rel=nofollow>http://www.matronics.com/Navigator?Europa-List =nofollow>http://forums.matronics.com blank rel=nofollow>http://www.matronics.com/contribution http://www.matronics.com/Navigator?Europa-List http://www.matronics.com/contribution


    Message 13


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    Time: 06:22:40 PM PST US
    Subject: Re: LED LANDING LIGHTS
    From: "rparigoris" <rparigor@suffolk.lib.ny.us>
    Hi Chuck We did some more testing on Sunday, the regulator is just a buck switching regulator, no pulse for greater light output. Info detailed at: http://www.europaowners.org/modules.php?set_albumName=album271&op=modload&name=gallery&file=index&include=view_album.php&page=1 Get the hash down and your radio will be happier. Ron Parigoris Visit - www.EuropaOwners.org




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