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Europa-List: Motorglider Wings?

Subject: Europa-List: Motorglider Wings?
From: Bud Yerly <budyerly@msn.com>
Date: Sun, 19 May 2019 02:32:11
Clive,

  1.  The glider wings cannot fit on a mono trailer without modification.  
They will stick out far too much off the rear of the trailer to be legal al
so.
  2.  Rare to have two Europa=92s that have wing pins line up exactly.  I
=92m not going out on a limb when I say it will be close, but there is near
ly no chance for two aircraft to share a wing.
  3.  Glider wings are nominally 100 pounds heavier than the XS.  Depends o
n finishing skills, and whether Mod is complete.  I add a spar cup for the 
mod 78 to make rigging easier.  New Mod 78 forward socket sort of makes rig
ging somewhat easier.  The wings are heavy, it is best to build a trolley t
o roll them around.  I=92ve been banged up a few times from wings that =93g
ot away=94 and rotated while going from load to aircraft.


CG shift from short to long wings really depends on sweep and finish.  In m
y experience it shifts the CG =BD inch aft.  Most of my short wings are at 
a CG of 60, and adding glider wings went to 60.5 or 60.6.


  1.  There are a couple mono=92s with glider wings.  There is more mass mo
ment of inertia so the rudder inputs to kick one straight may be slightly h
igher.  Landing attitude was figured pretty well in the design so landing p
icture was not terribly different.   Pitch on final with airbrake changes m
ust be anticipated.  No airbrake is a real floater.  Making a slight fricti
on stop on the airbrake at half extension works out fairly well.  Achieving
 landing attitude requires patience.  Float is significant.  Europa Aircraf
t has photos on the ground and in the air.  I do not, sorry.

Best Regards,

Bud Yerly
Custom Flight Creations, Inc.


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