Hi! Alan
I mused about this problem when I built my wing dolly and also since
having used it often. However when I rig with a helper, who initially
handles the tip, when I take over the tip end from him having engaged
the spar, I lift the tip trailing edge with one hand until he is out of
the way, so my thoughts are that the tip end C of G is in fact behind
the trailing edge (in fresh air!) when the root end of the wing is
supported by the spar.
In other words you can not make the dolly to fit the C of G. I plumped
for approx. mid chord for the pivot.
Regards
Bob Harrison G-PTAG
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of milnera
Sent: 24 March 2008 12:41
Subject: Europa-List: Wing dolley - where to put the pivot point
<alan_milner@totalise.co.uk>
I had hoped for an Easter weekend in Cornwall, but with snow, rain,
gales and generally miserable weather I thought I'd make up some wing
dolleys to aid self rigging.
I've pretty much copied the design used by many; essentially two layups
clamped around the tip, hinged on the underside and supported by a two
wheeled metal frame the pivots to allow the wing to move from vertical
to horizontal. The layups are curing now in this tropical heat so they
should be ready by next Easter :)
Anyone who has been using a similar design, can you suggest where to put
the pivot point for a trigear wing? I planned to balance it so it's
slightly leading-edge heavy. It would then fall to the vertical for
storage and when wheeling it around.
Any comments from experience most welcome. I haven't built the frame
yet.
Alan
Visit - www.EuropaOwners.org
--
Checked by AVG.
23/03/2008 18:50
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