Europa-List Digest Archive

Mon 02/09/04


Total Messages Posted: 22



Today's Message Index:
----------------------
 
     1. 12:30 AM - Re: Wing Spar Pins (DuaneFamly@aol.com)
     2. 01:09 AM - Re: Dehumidifier (nigel charles)
     3. 04:13 AM - GPS Driven Autopilots (Tony Renshaw)
     4. 04:32 AM - Re: Chamfering access panels (Tony Renshaw)
     5. 05:18 AM - Ground plane size for GPS antenna (Paul McAllister)
     6. 05:20 AM - Re: Chamfering access panels (TELEDYNMCS@aol.com)
     7. 06:36 AM - Re: Ground plane size for GPS antenna ()
     8. 07:19 AM - Wing Spar Pins (Graham Singleton)
     9. 07:32 AM - Re: Ground plane size for GPS antenna (n3eu@comcast.net)
    10. 07:52 AM - Re: Wing Spar Pins (ivor.phillips)
    11. 08:03 AM - Re: Wing Spar Pins (ivor.phillips)
    12. 08:54 AM - Re: Dehumidifier (Davidghillam@aol.com)
    13. 10:00 AM - Wing spar pins ? (John & Paddy Wigney)
    14. 10:24 AM - Re: Wing spar pins ? (Peter Zutrauen)
    15. 10:33 AM - Wing spar pins (Fergus Kyle)
    16. 11:54 AM - Re: Wing spar pins ? (DuaneFamly@aol.com)
    17. 11:59 AM - Re: Wing spar pins (DuaneFamly@aol.com)
    18. 12:56 PM - Re: GPS Driven Autopilots (Ami McFadyean)
    19. 03:44 PM - Choosing an EFIS (Bill and Sue)
    20. 04:51 PM - GPS Autopilots (Tony Renshaw)
    21. 07:24 PM - Re: Wing spar pins (Fergus Kyle)
    22. 10:47 PM - Re: Wing spar pins (DuaneFamly@aol.com)
 
 
 


Message 1


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    Time: 12:30:35 AM PST US
    From: DuaneFamly@aol.com
    Subject: Re: Wing Spar Pins
    --> Europa-List message posted by: DuaneFamly@aol.com Thanks to all for the input......cut the threads...better yet replace with another PIP pin. It was a long night and I didn't read ahead after inserting the wings for the second time. Mike Duane A207 Redding, California XS Conventional Gear CM & rudder pedals with cables installed. Working on tailwheel and baggage bay. Trial fit of top and both wings. The wings fit! Conventional gear soon.


    Message 2


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    Time: 01:09:40 AM PST US
    From: "nigel charles" <nigelcharles@tiscali.co.uk>
    Subject: Re: Dehumidifier
    --> Europa-List message posted by: "nigel charles" <nigelcharles@tiscali.co.uk> Hi David >From memory, I think it cost over 100GBP. Any sensible offer accepted. Located Gloucestershire/Wiltshire border.< I will offer 50 and can collect. Regards Nigel Charles


    Message 3


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    Time: 04:13:32 AM PST US
    From: Tony Renshaw <tonyrenshaw@optusnet.com.au>
    Subject: GPS Driven Autopilots
    --> Europa-List message posted by: Tony Renshaw <tonyrenshaw@optusnet.com.au> Gidday, I have heard of at least one builder who is using the Trio autopilot. I haven't diligantly studied the specs yet, but it is cheaper than the others, which isn't always the best place to start. However, I'd be interested in knowing whether anyone has an opinion on the use of these GPS driven autopilots. http://www.trioavionics.com/Features.htm#Solid_State_Gyro Reg Tony Renshaw Sydney Australia Classic 236 B.B. Taildragger (possibly convertible) Tail, Wings, Ailerons, Flaps Complete and Connected Lower Fuse in Jig, Tail Torque Tube installed Mass Balance assembly installed and deflections sorted Intended Engine: 912S CS prop (model undecided) Instrumentation: Undecided


    Message 4


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    Time: 04:32:43 AM PST US
    From: Tony Renshaw <tonyrenshaw@optusnet.com.au>
    Subject: Re: Chamfering access panels
    --> Europa-List message posted by: Tony Renshaw <tonyrenshaw@optusnet.com.au> Dan, The best way is to use a razor knife and simply perforate the skin on the inside. There are many ways to make these access panels, but if you want to remove an internal skin that is over a foam core, well just approximate the angle and perforate ensuring you don't push too hard and compromise the outer skin. Once you have a starting point, it is easy enough to join up the perforations. I reckon the best way it to take back 1/2" or so, and then put back a small flox fillet that will bond it all together, plus give the cloth on the inside a nice coutour that is not too angular that it compromises strength. Reg Tony Renshaw Sydney Australia At 08:41 PM 2/8/2004 -0700, you wrote: >--> Europa-List message posted by: "Dan Bish" <danbish@norwalktucson.com> > >Hi all, > >I was wondering if there's a simple tool & technique to chamfering the edges >around the access panels around the tailplane. Page 23-3 of the manual says >to chamfer back 10-15mm at about 45 degrees which looks doable, just >wondering what's the best tool to use to do this without going all the way >through the skin. Thanks, > >Dan >A144 >Tucson, AZ > >


    Message 5


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    Time: 05:18:37 AM PST US
    From: "Paul McAllister" <paul.mcallister@qia.net>
    Subject: Ground plane size for GPS antenna
    --> Europa-List message posted by: "Paul McAllister" <paul.mcallister@qia.net> Hi all, I am installing a GX60 and I seem to recall a minimum size requirement for the GPS antenna, however upon scouring the installation manual I can't find a reference to this. Has anyone out there had experience with installing approach certified GPS unit and have any recommendations ? Thanks Paul


    Message 6


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    Time: 05:20:11 AM PST US
    From: TELEDYNMCS@aol.com
    Subject: Re: Chamfering access panels
    --> Europa-List message posted by: TELEDYNMCS@aol.com In a message dated 2/9/2004 7:33:23 AM Eastern Standard Time, tonyrenshaw@optusnet.com.au writes: > I was wondering if there's a simple tool &technique to chamfering the edges > > >around the access panels around the tailplane. Page 23-3 of the manual says > > >to chamfer back 10-15mm at about 45 degrees which looks doable, just > >wondering what's the best tool to use to do this without going all the way > >through the skin. Thanks, > > > >Dan > >A144 > >Tucson, AZ Hi Dan, Dremel makes a router attachment for their motor tool. I've found that it works great to remove outter skin and foam, but leave the inside skin intact. I use a 1/4" deburring bit with a flat end so it won't cut through the inner glass. You set the depth to just under the thickness of the foam. After you remove the foam with the Dremel chamfering is easy with 60 grit on a block. This also works great if you're building a trigear and have to put in the hardpoint for the flap actuator. Regards, John Lawton Dunlap, TN A-245


    Message 7


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    Time: 06:36:30 AM PST US
    From: <beecho@beecho.org>
    Subject: Ground plane size for GPS antenna
    --> Europa-List message posted by: <beecho@beecho.org> Hi Paul A cd works great! (AOL is good for something!) Tom -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Paul McAllister Subject: Europa-List: Ground plane size for GPS antenna --> Europa-List message posted by: "Paul McAllister" <paul.mcallister@qia.net> Hi all, I am installing a GX60 and I seem to recall a minimum size requirement for the GPS antenna, however upon scouring the installation manual I can't find a reference to this. Has anyone out there had experience with installing approach certified GPS unit and have any recommendations ? Thanks Paul == == == ==


    Message 8


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    Time: 07:19:19 AM PST US
    From: Graham Singleton <graham@gflight.f9.co.uk>
    Subject: Wing Spar Pins
    --> Europa-List message posted by: Graham Singleton <graham@gflight.f9.co.uk> At 23:56 08/02/2004 -0800, you wrote: >--> Europa-List message posted by: "Cliff Shaw" <flyinggpa@comcast.net> > >Mike > >I think you missed a step. On both Europas I have built, I cut the threads >off that bolt. It still may be a tight fit. Some people do replace the >starboard bolt for a PIP pin. I don't think it matters much. With a PIP >pin you will not have to build the "keeper" for the allen wrench end of the >bolt. That might be worth it. > >Cliff Shaw You will find that if the 3 bushes in the spar and the CM are exactly in line, and concentric, the bolt will be a bit sloppy. Lining up the bushes is not easy but worth the effort. I used a slightly (very slightly) oversize expanding reamer to align them <<I am not sure why Europa does not supply a pip pin for the stbd side.>> Cost, they are a heck of a price and it's already difficult enough to keep the cost reasonable. Kevin Graham


    Message 9


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    Time: 07:32:48 AM PST US
    From: n3eu@comcast.net
    Subject: Re: Ground plane size for GPS antenna
    --> Europa-List message posted by: n3eu@comcast.net > I am installing a GX60 and I seem to recall a minimum size requirement for > the GPS antenna, however upon scouring the installation manual I can't > find a reference to this. Has anyone out there had experience with > installing approach certified GPS unit and have any recommendations ? > > Thanks Paul My Apollo GX-65 manual is silent re ground plane also, likely due to its being largely irrelevant for airborne use. The circularly polarized antenna inside is of unique design, nothing like a 1/4-wave whip antenna which needs a ground plane for sure. It's thus designed to work in conjunction with the metal base of the antenna package they give you. Regards, Fred F.


    Message 10


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    Time: 07:52:08 AM PST US
    From: "ivor.phillips" <ivor.phillips@ntlworld.com>
    Subject: Re: Wing Spar Pins
    --> Europa-List message posted by: "ivor.phillips" <ivor.phillips@ntlworld.com> > Cost, they are a heck of a price and it's already difficult enough to keep > the cost reasonable. Just brought one for the starboard side yesterday, 52 plus delivery,(ouch) Ivor Phillips 486XS >


    Message 11


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    Time: 08:03:09 AM PST US
    From: "ivor.phillips" <ivor.phillips@ntlworld.com>
    Subject: Re: Wing Spar Pins
    --> Europa-List message posted by: "ivor.phillips" <ivor.phillips@ntlworld.com> 52 pounds that is!! > > Just brought one for the starboard side yesterday, 52 plus delivery,(ouch) > > Ivor Phillips > 486XS > > do not achive


    Message 12


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    Time: 08:54:02 AM PST US
    From: Davidghillam@aol.com
    Subject: Re: Dehumidifier
    --> Europa-List message posted by: Davidghillam@aol.com Hi Nigel, Thanks for your offer. Unfortunately, I received an offer (also for =A350) from someone else before your e-mail arrived, which I have accepted. Arrangements are in hand for someone to collect on the buyer's behalf, but if these fall through, I will come back to you. Sorry about that. David


    Message 13


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    Time: 10:00:50 AM PST US
    From: John & Paddy Wigney <johnwigney@worldnet.att.net>
    Subject: Wing spar pins ?
    --> Europa-List message posted by: John & Paddy Wigney <johnwigney@worldnet.att.net> <<<<<<Europa-List message posted by: DuaneFamly@aol.com Good day All, Question - for those that are flying or are past the wing angle of incidence setup stage.... the two wing spar pins that hold the wings together to the CM......one is a nice smooth PIP pin while the other is a threaded bolt with an Allen wrench welded to it. Have people changed this threaded bolt to the PIP pin, or some other more suitable pin? I have set the wings in place twice now and while the PIP pin is still a little snug to get in, I can do it. While the other side snags on the threaded portion until my wife joggles the wings in order for it to get into place. Am I not seeing some use for the threaded bolt that comes later on? Mike Duane A207 >>>> Hi Mike , I initially used the PIP pin and the bolt/Allen wrench pin which were supplied. After some time and some struggles with the PIP pin due to a snug fit and not much to get hold of, I changed to two bolt/Allen wrench pins since they are much easier to insert and remove. Cheers, John N262WF, mono XS, 912S


    Message 14


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    Time: 10:24:03 AM PST US
    Subject: Wing spar pins ?
    From: "Peter Zutrauen" <peterz@zutrasoft.com>
    --> Europa-List message posted by: "Peter Zutrauen" <peterz@zutrasoft.com> John Wrote: Hi Mike , I initially used the PIP pin and the bolt/Allen wrench pin which were supplied. After some time and some struggles with the PIP pin due to a snug fit and not much to get hold of, I changed to two bolt/Allen wrench pins since they are much easier to insert and remove. Cheers, John N262WF, mono XS, 912S Isn't the Pip-pin functionality required to keep the spars together on the port side? Cheers, Pete A239


    Message 15


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    Time: 10:33:47 AM PST US
    From: "Fergus Kyle" <VE3LVO@rac.ca>
    Subject: Wing spar pins
    --> Europa-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca> I followed the recent thread and see one or two inferred assumptions that MAY be incorrect [IMHO naturally!]. If I remember, the pip pin was chosen in order to bring the starboard spar end snuggly up against the port one; (a) the cup isn't strong enough for that and (b) the pip pin ears are on fixed 'reach' and we added some washers so that the ears (when released) bring up against the starboard bush to achieve the snugness inferred. The starboard plain pin (with the threads sawn off) doesn't need to pull the spars forward against the back of the CM, and anyway it's too late to determine the required reach of the ears. I think one must establish that the replacement pip pin for the bolt one does not remain "ears-in"as it might allow the pin to jiggle forward. Also if the ears are against the tincup back, stresses on the spar will not make the ears bend in the tin cup. Does that make sense? That clever devil Neville should revel in the proposed bevel. Ferg


    Message 16


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    Time: 11:54:08 AM PST US
    From: DuaneFamly@aol.com
    Subject: Re: Wing spar pins ?
    --> Europa-List message posted by: DuaneFamly@aol.com John, Since the port side PIP pin has the washers that hold it, and the spars, snug against the CM, what did you do to mimic this? Mike Duane A207 Redding, California XS Conventional Gear CM & rudder pedals with cables installed. Working on tailwheel and baggage bay. Trial fit of top and both wings. The wings fit! Conventional gear soon.


    Message 17


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    Time: 11:59:34 AM PST US
    From: DuaneFamly@aol.com
    Subject: Re: Wing spar pins
    --> Europa-List message posted by: DuaneFamly@aol.com Ferg, Seems to me by the response that a PIP pin in the starboard side would be bad as long as it inserted and removed easily. Any problem with the strength of the PIP pin? It could also be backed by washers as on the port side. Wouldn't hurt? Mike Duane A207 Redding, California XS Conventional Gear CM & rudder pedals with cables installed. Working on tailwheel and baggage bay. Trial fit of top and both wings. The wings fit! Conventional gear soon.


    Message 18


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    Time: 12:56:44 PM PST US
    From: "Ami McFadyean" <ami@mcfadyean.freeserve.co.uk>
    Subject: Re: GPS Driven Autopilots
    --> Europa-List message posted by: "Ami McFadyean" <ami@mcfadyean.freeserve.co.uk> Seems to have more system functionality than the Digitrak (which I have) and provides more information about what its upto. I couldn't see from the website literature whether the sensitivity and torque were adjustable (as they are on the Digitrak; but once set they never change). But these characteristics could otherwise be modified by altering the length of control horns on the servo and whatever part of the aileron circuit it attaches to. Digitrak's customer-service is good. Duncan McF. ----- Original Message ----- From: "Tony Renshaw" <tonyrenshaw@optusnet.com.au> Subject: Europa-List: GPS Driven Autopilots > --> Europa-List message posted by: Tony Renshaw <tonyrenshaw@optusnet.com.au> > > Gidday, > I have heard of at least one builder who is using the Trio autopilot. I > haven't diligantly studied the specs yet, but it is cheaper than the > others, which isn't always the best place to start. However, I'd be > interested in knowing whether anyone has an opinion on the use of these GPS > driven autopilots. > http://www.trioavionics.com/Features.htm#Solid_State_Gyro > > > Reg > Tony Renshaw > Sydney Australia > > Classic 236 B.B. Taildragger (possibly convertible) > Tail, Wings, Ailerons, Flaps Complete and Connected > Lower Fuse in Jig, Tail Torque Tube installed > Mass Balance assembly installed and deflections sorted > Intended Engine: 912S CS prop (model undecided) > Instrumentation: Undecided > >


    Message 19


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    Time: 03:44:46 PM PST US
    From: "Bill and Sue" <billandsue@billbell.co.uk>
    Subject: Choosing an EFIS
    --> Europa-List message posted by: "Bill and Sue" <billandsue@billbell.co.uk> Sue and I need to decide on our panel soon, essentially, although both we and the Europa are limited to VFR operation, we want a full panel if only as a get-back-safely option. Cost is a factor for us and we would prefer to avoid vacuum instruments on weight and reliability grounds. 'Traditional' electric gyro horizon and DIs are shockingly expensive compared with their vacuum equivalents (and there seems to be some doubt about the reliability of some of them) The cost of an electric horizon and DI is about 2,100 euros plus VAT - our benchmark to compare the cost of alternatives. (The EFIS prices I have listed are for the nearest equivalent to the mechanical instruments) One of the new EFIS systems now available would appear to be a sensible route to go. Impressive as they are, any of the pocket PC based systems are non-starters for this job - I would not dream of letting my life depend on a Microsoft product! I know of four EFIS systems that appear to be candidates: DYNON (1770 Euro) Pros; * Brilliant price * Built in backup battery Cons; * Crude graphics * Inability to display the pressure setting on the main screen- I wrote to Dynon and queried this and got a prompt response confirming that the Altimeter pressure setting is only available on a separate screen accessed by two button pushes - they also state that they have no intention of changing this. I really don't feel comfortable with the idea of having to loose my primary instruments to check or alter the altimeter setting -four button presses and a variety of option screens seems to be a backward step from the functionality of an analogue instrument. It would be simple enough to use a traditional altimeter but it does raise serious doubts in my mind about the whole approach to the design * No European presence- some doubt about the commitment to service this side of the Atlantic. Blue Mountain EFIS Lite (3550 Euro) Pros; * Looks a well-made, good quality unit Cons * Too deep to fit the Europa Panel * Looks more suited as a backup to their impressive EFIS ONE, it offers moving maps and autopilot that appear on alternative screens. All this extra functionality is very impressive but it really needs two displays, I don't feel comfortable with the idea of scrolling between different screens on primary flight instruments. * Appears to have aggressive conditions of sale/ guarantee policy. B & A UFD64 (8250 Euro) Pros; * An impressive looking unit. * Very clear graphics * Primary instruments always visible when other options are invoked. * Can operate with a second screen * European manufacture Cons * The price * At this price I cannot help but doubt the future of the product, so this raises questions over backup and service. Grand Rapids Horizon (4725 Euro) Pros; * Good-looking graphics * Dedicated primary instrument screen * Other functions can be added to a second screen. * Uses external GPS signals - better for using with other GPS mapping systems/Trutrack autopilot * Good guarantee/ conditions of sale. Cons * I have never seen this one in the flesh, so I don't know how good the display is for instance. * Lack of a presence in Europe raises some doubts about backup. At present, although it is perhaps the best of the devices, I think the B&A unit is a reject on price alone, and since the EFISLite won't fit, it looks like a race between the Dynon and the Grand Rapids Horizon. I would be grateful for anyone's experience of using any of these units, corrections to my misconceptions or suggestions for alternatives we should consider. Bill & Sue XS Trigear 465 -about to stick the top on!


    Message 20


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    Time: 04:51:54 PM PST US
    From: Tony Renshaw <tonyrenshaw@optusnet.com.au>
    Subject: GPS Autopilots
    --> Europa-List message posted by: Tony Renshaw <tonyrenshaw@optusnet.com.au> Gidday, For anyone interested I just finished speaking with Sid from Trio Avionics. There web address is: http://www.trioavionics.com/index.htm They have a new product due within 40 days, where a secondary roll axis Mems gyro is added to give even greater roll stability in turbulence. It will cost about $200-300 US more, but still the unit will be several hundred dollars cheaper than TruTrak. So, worth a look for those interested. Reg Tony Renshaw Sydney Australia Classic 236 B.B. Taildragger (possibly convertible) Tail, Wings, Ailerons, Flaps Complete and Connected Lower Fuse in Jig, Tail Torque Tube installed Mass Balance assembly installed and deflections sorted Intended Engine: 912S CS prop (model undecided) Instrumentation: Undecided


    Message 21


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    Time: 07:24:42 PM PST US
    From: "Fergus Kyle" <VE3LVO@rac.ca>
    Subject: Re: Wing spar pins
    --> Europa-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca> ----- Original Message ----- From: <DuaneFamly@aol.com> Subject: Re: Europa-List: Wing spar pins | --> Europa-List message posted by: DuaneFamly@aol.com | | Ferg, | | Seems to me by the response that a PIP pin in the starboard side would be bad | as long as it inserted and removed easily. Any problem with the strength of | the PIP pin? It could also be backed by washers as on the port side. Wouldn't | hurt? | | | Mike Duane A207 | Redding, California | XS Conventional Gear | CM & rudder pedals with cables installed. Working on tailwheel and baggage | bay. Trial fit of top and both wings. The wings fit! Conventional gear soon. Mike, Well, I don't know. I kept the bolt version starboard side, 'cause the manual said to. No, I don't think there is any problem with the pip-pin's strength since it's used portside, but the extra cost of the 'ears' isn't utilised, so why use it. Peter Zutrauen had it right when he mentioned the need for it portside, but I don't see how it can be needed on the starboard. My only caution there was the need to pen it in with the original fixture since the dimensions MIGHT keep the ears in and allow the starboard pip-pin to vibe out. If you use the retainer specified in the manual, what is the advantage of the pin-pin? How would you apply the washers, since no dimension is given (might be same as port) and pin is in the cup...........? Just mulling........... Cheers, Ferg


    Message 22


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    Time: 10:47:08 PM PST US
    From: DuaneFamly@aol.com
    Subject: Re: Wing spar pins
    --> Europa-List message posted by: DuaneFamly@aol.com Mmmmmmmmmm. Maybe the status quo wins. Will continue to mull it over. Mike Duane A207 Redding, California XS Conventional Gear CM & rudder pedals with cables installed. Working on tailwheel and baggage bay. Trial fit of top and both wings. The wings fit! Conventional gear soon.




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