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Europa-List: Mono Wheel Undercarriage Fairing

Subject: Europa-List: Mono Wheel Undercarriage Fairing
From: aporue <hyndman@eol.co.nz>
Date: Thu, 6 Jul 2017 15:53:06

Hi All,

I am currently building a Mono Wheel Classic fitted with a Rotax 914 and would
like to fit a fairing to the main Wheel.   I have read several posts relating
to this subject but as yet to see the fairing made by Kim Prout? which I believe
is fitted to Bob Jacobsons' and Cliff Shaws' aircraft.  If any members have
photos of the fairing I would appreciate it if you could   post them or email
me direct.  

My idea so far would be to have a fairing in front of the wheel that covers the
hole below he undercarriage leg and part of the wheel when retracted. The rear
of the wheel is also easy, as a fairing could be attached to the fuse.   The
centre part, if it is to cover the wheel, needs some kind of moving cover and
this is where it gets tricky.  The moving part needs to open and close with some
kind of mechanism, preferably by operating the current undercarriage lever,
be able to withstand the pressure of the airflow when open and in a yawing 
manouver,
and able to cope with mad splatter and still close when retracted.  It
could be built as suggested, with 2 to 3 plies of Bid so it would collapse if
a gear up landing were made.   I am currently modifying the engine cowl ( along
the lines of Fred Kliens' idea) and have done away with the current large
opening to exit the hot engine airflow. I hope this alteration will allow a main
wheel fairing to reduce overall drag without too much of a weight penalty.
My gear leg retracts more than most with the proposed second uplock,  which will
leave the wheel rim level with the fuse bottom.   

Any ideas or photos would be appreciated. Thanks.

Regards Ross[list][b]


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http://forums.matronics.com/viewtopic.php?p=470744#470744



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