Someone at the factory failed trigonometry. If you use the inch unit
measurements in the Tri-Gear Manual on page 27-2, 30 July 1999, Issue 2
(.0872 inch over 50 inch chord) and do the trig correctly you will find that
the tolerance is actually 0.1 degrees (from arctan 0.0872/50 = 0.09992).
Note also that the manual tells you to drill through the fuselage sides to
accommodate the forward lift pins. Not being inclined to allow water to
flow into the cockpit I declined to do this and found that there is no need
to do it either, although it is certainly possible that others may have had
to do so to provide clearance.
Worse yet, had I followed the earlier instructions about bonding the aft
lift pins into the wing root I would have been unable to complete this step
because I found that the pip pin holes in the lift pins would have failed to
align with the holes in the W26 root pin sockets (the pins in my kit were
too long).
Best regards,
Rob Housman
Europa XS Tri-Gear A070
Airframe complete
Irvine, CA
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of
TELEDYNMCS@aol.com
Subject: Europa-List: Setting wing incidence
Greetings all,
I'm about to tackle setting my wing incidence. The manual says to use the
flap template and a digital level. Got that, but it also says the tollerance
is
.05 degrees. This seems a bit tough to get considering the method employed.
My
template is accurate enough to set the flaps in place, but I don't think I
can
achieve the accuracy needed with the given method.
With R/C stuff we use an incidence level that clamps to the LE and TE level
to the cordline. This seems much more effective, but I don't have one big
enough to make it work.
Since it's Oskosh week all the Europa folks are away. Due to a pregnant Lab
who is set to drop puppies any day now I won't be going to Oshkosh this
year.
Are there any tricks that those who have come before me can offer?
Regards,
John Lawton
Dunlap, TN
A-245
|