AviPro Aicraft, Ltd. Bearhawk N33RB, Builder'S Assistance Manual, Page: 4 / 28

On Building A Wing Rotisserie
Although a rotisserie is a long way from
being necessary, we thought we’d share what one
builder fabricated to make his life easier, and it
would indeed do that. A day with a hacksaw and
MIG welder, gives you a way of handling your
wings that can’t be beat and allows one man to do
many tasks, including turning the wings over, that
would require another body to help. This is an
excellent use for one of your crate tops.
Bolts Nuts
Used
Max
Torque
Nuts
Used
Max
Torque
AN365/
AN310
Inch-lb. AN364/
AN320
Inch-lb.
10-32
(3/16) 20-25 40 12-15 25
1/4-28 50-70 100 30-40 80
5/16-24 100-140 225 60-85 140
3/8-24 160-190 390 95-110 240
7/16-20 450-500 840 270-300 500
The wings don ’ t weigh very much (150 pounds), but they are
not only awkward but very easily damaged. Plus, you ’ re
always wishing you could get at the other side.
The construction uses 1” x 1/16 tubing as is used in security
gates and can be found everywhere. Better yet, there
’ s
enough steel in the top of one of your crates to build the dolly.
A locking mechanism doesn ’ t get any simpler than this. The
wing just lays in the pivot and the locking knob screws through
a nut welded to the frame.
When it comes time to paint the wings, a couple dollies like
this would guarantee a better paint job because you would
always be painting down at an angle with no vertical passes.