.
n.
Make a final assembly of all the strut pieces to the model. During the assembly epoxy the flat head bolts into the spruce
struts; epoxy together the lower ends of the Jury Struts where they overlap; and epoxy on the 4-40 hex nuts that hold them
all together. Let dry before taking off the model.
16.
Attaching The Tail Surfaces
If you've precovered the stabilizer, remove the covering material from the bottom center area where it will contact the
fuselage.
a.
With the wings mounted to the fuselage, pin the hinged stab/elevator assembly in
place. Note that the fuse will need to be trimmed slightly under the elevator joiner
to permit adequate movement of the elevators. Carefully align the stab with the
wings from the top and front views. Mark the location of the fuse on the top and
bottom of the stab center section. Remove the stab and apply epoxy glue. Slow
drying epoxy (not 5-minute) is recommended to allow adequate time to get the
stab in exact alignment before the glue hardens. Pin the stab back in place using
the markings to get it in approximate alignment. Before the glue hardens, recheck
the alignment carefully by measurement and shift the stab position slightly if
necessary.
b.
Epoxy the hinged fin/rudder assembly in place, installing the bottom hinge into
the rear of the fuselage at the same time. Align carefully.
c.
Glue the die-cut 1/8" balsa Tail Fairings in place. They should be flush with the fuselage sides at the stab leading edge
and touching the fin at the back.
FINISHING
17.
Radio Installation
It's best to mount all your radio equipment and pushrods before covering and
painting, while you still have easy access inside the model. Once the initial
installation has been made and all the bugs are worked out, you can take the
radio system back out while the painting is being done.
In spite of some of the things you may have heard or read, putting a radio in your
1/4-scale Cub need not be much different than for a smaller model. This section
describes the control system installations that have worked best in our prototype
Cubs and that we recommend. Except for the use of some "heavy-duty" parts,
you'll find that the installation is pretty straight forward. As with any size model,
the QUALITY of the installation more than anything else will determine how well it
flys the model.
Always double check all control hookups! Locate the source of any
binding, rubbing, or sticking and eliminate it.
No radio gear or servo mounting materials are supplied in this kit. Any other parts
called for in the instructions that we do not furnish are marked with an (*).
Elevator And Rudder Hookup
The elevator and rudder are each actuated by one "heavy-duty" servo. Almost every radio manufacturer produces heavy-
duty servos specifically designed to handle the increased control surface weights and air loads of 1/4-scale models.
Standard size servos (35 oz./in. torque or less) are not recommended for the elevator or rudder of the Cub. If in doubt
about the ability of the servos you have to handle the job, consult the manufacturer of the radio gear.
The most convenient method of installing servos in the fuselage is on the plastic mounts (*) that are offered by most radio
manufacturer for their equipment. These are screwed to hardwood mounting rails (*) that are epoxied across the inside of
the cabin area. Mount your servos anywhere between formers F5 and F6. Further instructions on the use of servo trays
are usually included with them.