Notice the position of the servo arm with the trapdoor closed.
The hopper holds baby powder for simulated crop dusting.
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center of the wing, glue the balsa filler
block ( 38) to the hinge spar to close the
gap between the wing and the fuselage.
Make the Landing Gear
Cut and bend 1/8-inch piano wire for
the main leg ( 39). To make the landing
gear support struts, bend the 1/16-inch
piano wire at one end to make the eye.
Bend the other end so it will fit into the
hole in the plywood plate, as shown on
the drawing. Slide the eye of each strut
onto the landing gear leg and the other
end of the support strut into the hole in
the plywood plate. If both struts fit on
the main leg, solder them to the leg.
If you want to do crop dusting, make
the holding bin as shown on the plans.
Cut out the opening in the top and
bottom sheeting of the wing. Glue
the bin to the wing. The powder will
be released through the trapdoor. The
dummy spreader is glued to the trapdoor
after the model is finish.
Install all of the servos, horns, and the
pushrods. The motor is installed through
the opening in former F1.
If you have installed the crop-dusting
bin, adjust the control arm on the servo
located on top of the bin so that when
the door closes, the servo arm is vertical.
This way, there is no load on the servo.
With the bin full, the center of gravity
should be in the location shown on the
There isn’t much to state because the
airplane does not have any bad habits. It
is a stable-flying model. When operating
the flaps for the first time, reach a good
height to test the flight characteristics.
The flaps are not necessary to fly or land.
54 Model Aviation FEBRUARY2017 www.ModelAviation.com