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josok-e(at)ukolo.fi
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 Posted: Sat Sep 29, 2007 7:32 am Post subject: Re : Tire question - cannot fly before informat |
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Hi John,
That's exactly what's bothering me, why does the Manual and the factory supply 8x6 and does my plane, and probably many others fly with 8x6 without any rubbing? It changes the attitude on the ground for one thing. Sounds like ill advise to me, however well meant.
This plane has been very well designed, is very well tested and still oh well: Lets mount something else, worse advise somebody else to do that. Think hard please, are you absolutely sure about all aspects of the change you propose? Are you qualified to advert changes? Are you ready to pay for the consequences if the advice is not so good after all? Sorry for the flame, but sometimes somebody has to pull the brakes. Why me again 
Regards,
Jos Okhuijsen
Visit - www.EuropaOwners.org
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houlihan(at)blueyonder.co
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| Posted: Sat Sep 29, 2007 9:51 am Post subject: Re : Tire question - cannot fly before informat |
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Hi Jos
You can blame me, at least in part, for the Golf cart tyre supplied in the
early kits.
Many years ago I happened to be at Kirkbymoorside when Ivan was trying to
contain escalating costs during development of the first series of kits. He
was looking into the use of alternative tyres he asked me If thought
customers would find the golf cart tyres acceptable as they were
significantly less expensive than true aircraft tyres. I was going through
one of my phases of thinking that most aircraft parts had a large element of
added cost over exactly equivalent commercial parts. So I said that if they
were Ok for size ,loading, speed etc then I would by OK with the alternative
tyre.
I note your comments about the Europa being a well tested product is
completely correct but bear in mind that since the take over by EMIL some
years ago virtually all development was stopped and since then all the
experience that has been gained has been by owner builders and flyers like
you and John.
The Europa is in many ways an "Experimental" aircraft and development is
necessary or it will not evolve as it should and could just fade away. So
please do not stick to the view that the design is perfect and if it's not
in the build manual it's wrong.
Best regards
Tim
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josok-e(at)ukolo.fi
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| Posted: Sat Sep 29, 2007 10:35 am Post subject: Re : Tire question - cannot fly before informat |
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Hi Tim,
You are right, in that further development of this airplane should be possible and should happen. Exactly on this forum are also great solutions and changes made available. My plane is not standard at all. What i do object against is "advice" without even the most basic form of substantiating the content. It does not matter if it is about the color of the interior, but if it involves security or flying properties some self discipline is called for. Advising to remove throttle springs was a fine example, changing tire size is another one.
I don't think the golf cart tires were a very good idea, although some of them are still around. Apart of the difference in price, there is probably also a difference in the narrowness of the specification. Raimo's tire is 8 years old on top of that. Tires do have a limited shelf life. Time to change for a real airplane tire! (of the right size)
Regards,
Jos Okhuijsen
Visit - www.EuropaOwners.org
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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hurstkr(at)redzone.com.au
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| Posted: Sat Sep 29, 2007 5:02 pm Post subject: Re : Tire question - cannot fly before informat |
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| Quote: | Time to change for a real airplane tire! (of the right size)
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Jos,
Europa supplied me with a CARLISLE 800 x 6 x 4 ply (Golf Buggy tyre)
On advice from others who have used both, I purchased a CONDOR 700 x 6 x 8
ply.Aircraft tyre (Fits Piper Aztec)
With both inflated to the same pressure on the same wheel they measure
Europa CARLISLE Diameter 440 mm Width 185 mm (rubs on brake calliper)
Aircraft CONDOR Diameter 457 mm Width 165 mm (comfortably clears
brake calliper by 10mm)
My question is, WHAT IS THE RIGHT SIZE ? How can a 7.00" tyre be bigger in
diameter than an 8.00" one? and No, I haven't made any mistakes with the
figures above.
Regards
Kingsley in Oz
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