Wing: The wing is
a one piece hollow molded construction. The skin is a fiberglass roacell
lay-up with a carbon capped spar. All servo bays have been pre cut
and servo covers trim to a perfect fit. both ailerons and flaps have
molded live hinges and control horn pre-installed. There is a ballast tube
installed ready to accept up to 10oz of brass ballast, which are included.
All that is left to you is to make the aileron , Flap push rods and mount
hollow molded with control horns pre installed. Same live hinge the wing.
The tail bolts to the fuse via two nylon bolts.
carbon reinforced fiberglass . pre finished with both wing mounting and
tail mounting bolts installed.
The CG should
be located at the front cutout for the ballast tube (25/8”
back from the leading edge of the wing). Note: My most recent Opus took 7
ounces in the nose to balance and had a flying weight of 50.2 ounces.
¼” maximum up and down. Refine further on the
first flight by pulling full elevator in a loop to the point where the
plane is on the verge of a stall; then back off a bit. In addition use a
lower setting when flying with ballast.
throw right and left
Ailerons: ¾” throw up and 5/8”
down gives tons of throw for maneuvering. You can cut this back by one
third any you would still have plenty.
Aileron to Flap Mix: Mix flaps so that they move 5/16”
at full aileron deflection.
Camber Mode: Drop the trailing edge 1/16”
and mix in enough up elevator to put the plane in a slow climbing mode.
Elevator to Flap Mixing: If you setup your Opus correctly,
you should be pulling full up to nearly full up when pylon turning. With
full up elevator the flaps and ailerons should come down a minimum of 1/16”
to a maximum of 1/8”. Be
sure set an offset on the mix so that the mix does not begin until you
pull about 40% up elevator. The last thing you want is for this mix to
kick in while your flying in between the pylons.
Crow / Landing mode:
1) Flaps down full and down
2) Flaps down
full, ailerons up 5/16”
and down elevator compensation.