SIG SIGRC80 Rascal C, Instruction Book, Page: 26 / 31

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Throughout our testing of the electric version of this model, we used both 7 and 8
cell battery packs, using Sanyo KR-600AE cells (1.2 volt, 600mAH). These
battery packs have provided outstanding power and duration and we can highly
recommend them. We honestly feel that if you re trying to save money, don't do it
on batteries! We also used and highly recommend the AstroFlight Model 115D
AC/DC Digital Peak Battery Charger. This charger is user friendly, very
affordable and does the job every time.
Before installing the rudder and elevator servos, remove their output arm screws.
Install the servos in the servo tray, routing the cables through the cut-out in
former F-5.
The motor and gearbox are now prepared for installation. Solder the wires onto
the motor s terminals (you ll need about 5" of wire length) and solder the
connectors onto the wire ends. The Maxx gearbox is now attached to the front of
the motor, using the two screws provided. As discussed earlier, the Maxx
gearbox comes with three primary gears; 2.1: 1 (14 tooth), 2.5:1 (12 tooth) and
3:1 (10 tooth). We have done most of our test flying using the 2.1:1 and 2.5:1
gears. Install the primary gear onto the motor's shaft. Adjust the gear lash as
closely as possible to the aluminum drive gear. Note that there must be at least a
small fraction of play between these two gears, but very little.
Also, we have made it a habit to use non-permanent threadlock compound whenever installing the above parts. This helps
to keep everything together.
Install the Maxx Clam Shell motor mount onto the bottom of the plywood mount in the nose of the airplane, leaving the
bolts a little loose. Slide the connectors through the mount and the bottom half of the firewall hole, into the fuselage. Slide
the motor body into the Clam Shell mount, until it bottoms out at the back of the ply mount. Center the gearbox shaft to the
fuselage and tighten the clam shell motor mount bolts, locking the motor in place.
From the bottom access hatch, connect the speed controller to the motor side of its connectors. Install the speed
controller's On/Off switch into the left side of the fuselage, using the slot and screw holes made earlier. The speed
controller is now placed into the tank compartment, behind the firewall - do not wrap it in anything.
Connect the rudder and elevator servos to the appropriate receiver receptacles. Connect the speed controllers receiver
connector to the appropriate throttle channel receptacle. Without a propeller on the motor, connect the speed controller to
a freshly charged battery pack. Turn the transmitter on first, followed by the switch mounted in the airplane. Using the
transmitter, try your controls. Make sure the transmitter trims are at neutral. If needed, lift the servo output arms off the
servos and reposition them squarely in place. Next, check to see if the servos are moving in the correct directions to
provide left and right and up and down. Reverse the travel direction of the servos if needed. Next, try the throttle. If throttle
direction is wrong, nothing will happen. In this case, turn the system off, reverse the throttle direction on your transmitter
and turn the system back on. Again try throttle - it should work fine if you followed the instructions that came with the
speed controller. Disconnect the batteries from the speed controller.
After checking out the system, the receiver can be placed in the airplane. As
mentioned earlier, we simply placed the receiver beneath the servos, between F-
5 and F-6. Assuming you are using a speed controller with BEC, the flight
batteries are attached to the bottom access hatch using the 4" length of Velcro
tape included in your kit.
We ran the receiver antenna out through the top of the right fuselage side and
then back to the rear of the fuselage, to the tailpost. A simple bent pin hook was
made to hold the antenna in place, using a small rubber band for tension.
GLOW:
Remove the output arm screws from the servos and install the three servos in place onto the servo tray. Route their
connector cables out through the opening at the bottom of F-5. We used a Hitec 270mAH battery pack to power our
system. This little pack provides an honest hour of flight time, which is more than adequate. We placed the battery pack
directly beneath the fuel tank, wrapped in light foam.