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The foam parts can be assembled using either low-temp hot glue, foam safe thick CA or
5-minute epoxy. All three work well with foam. Wood parts can be assembled with
either foam safe CA or 5-minute epoxy. The firewall should only be assembled with
epoxy.
Tip: To keep the aircraft weight light, mix micro-balloons with the epoxy. This will
decrease the pot life of the epoxy, so work quickly or use 15-minute or longer epoxy.
Read all of the instructions before starting to assemble your BLUE RAY.
Kit Parts:
The Black Hawk R/C Pilots BLUE RAY kit includes all of the foam and wood parts
including a precut foam wing. The kit has been cut from blue or pink extruded
polystyrene foam insulation board that is ¼” (6 mm) thick with a plastic film on one or
both sides. The plastic film does not add any appreciable strength to the aircraft
structure. We recommend removing all of the plastic film. If you choose to leave the
plastic film on the parts, cut away the film in the areas that will be glued together.
Note: Some parts have lines marked on the film to assist in assembling the aircraft. Do
not remove the plastic film from these parts until you have made the appropriate cuts.
Tip: Rounding the leading edges of the horizontal and vertical stabilizer and the
fuselage corners will require removing the plastic film from the areas to be rounded.
It’s easier to remove the film from the entire surface than to just trim it from the areas
that are rounded.
Tip: When sanding the foam part, use #220 or finer sandpaper. Coarse sandpaper will
“tear” the foam.
Radio:
Test the radio, servos, ESC and motor. If not already attached, solder male bullet
connectors to the motor wires and female bullet connectors and a male power plug to
the ESC wires. If using a 2.4 GHz radio system, bind the receiver to the transmitter and
setup the radio for the aircraft. Connect all the servos to the radio receiver and make
sure they work before installing them in the aircraft.
Fuselage:
The elevator servo location is marked on both fuselage
sides. Decide which side you want to install the
elevator servo in and make the cutout to fit your servo.
Start the fuselage construction by gluing the plywood fuselage doublers to the inside of
the fuselage side pieces. Make a RIGHT and a LEFT side! Be sure the holes for the
hold-down dowels are lined up.
