FREE AIR Free Bee, Building Instructions

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Manual Free Bee www.freeair.cz Page Nr..: 2
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(Fig. 30). Using a sharp modelling knife, bevel the fuselage edges so that the rudder may deflect freely (Fig. 31) and
glue the rudder (Fig. 32) and its arm (Fig. 33) in place. Glue into the fuselage also the tailskid and its reinforcement
(Fig. 34, 35).Using a sharp knife, cut an approximately 1,5 mm deep slit into the wing and press into it the carbon
fibre spar; glue using the CA (Fig. 36). Note, the spars MUST be one above the other. The remaining length of the
spar from the forward part of the wing could be used to reinforce the rear of the wing centre section (Fig. 37). Glue
the upturned tips to the centre section (Fig. 38) and the reinforcement for the rubber loop, fixing the wing to the
fuselage (Fig. 39,40). Glue this reinforcement on the wing centreline.Using the sandpaper, sand away any bumps on
the fuselage front and glue the motor bulkhead in place (Fig. 41), then the motor bearers to the bulkhead (Fig. 42).The
fuselage is designed with the motor downthrust in mind, but ensure that in case of need the motor bearer could be
unbolted and have washers inserted to change the downthrust angle. Insert the motor speed controller between the
keels and a place it close to the motor bulkhead. Connect the controller to the receiver (Fig. 43). Between the keels,
some 100 mm from the nose of the fuselage, cut an opening for the servos. Push the servos into the prepared openings
(Fig. 44). You may secure the servos in place using a drop of CA glue at the brackets. Connect the servos to the
receiver and check the neutral position and the correct spacing of channels.Using a sharp knife, cut the canopy part as
per Figs.45 and 46. If the canopy fits well, glue it in place (Fig. 47, 48). Last, glue the reinforcing bulkhead into the
canopy (Fig. 49). Glue the front wing holding dowel of 2 x 100 mm aluminium wire and secure it with the glassfibre
stop/washers (Fig. 50). Similarly, glue the rear wing-holding dowel of 1,6 x 100 mm aluminium wire and the
glassfibre securing washers from both sides (Fig.51).Slide the 3 x 10 mm tubes (three each side) and insert their end
with the Z bend into the servo arm (Fig. 52). On the empennage side bend the wire to make an L and using a drop of
CA, secure them from accidental sliding out (Fig. 53). Then glue the push/pull rod guide pillars into the fuselage.In
the fuselage front, forward of the servos, cut between the keels an opening for propulsive batteries (Fig. 54). Glue the
5mm part of EPP, shortened to the 70 x 300 mm dimensions, between the two wing ribs (Fig. 55). Then cut away the
excess material which could hinder gluing the wing into the fuselage (Fig. 56); glue the part to the wing centreline
(Fig. 57). Connect the motor (Fig. 58) and the model is finished. The Free Bee model is not too sensitive to the
position of the centre of gravity, it should lie, however, some 90 mm from the wing leading edge. Thanks to the
excellent flight characteristics there is no need to limit the control surface deflections. The model is very docile and
nice-flying, yet it is still very nimble and able to be flown in a confined space. The weight in flight with the 600 mAh
battery and an HCS C 60W/2-3 motor is 305 grams, giving a wing loading of 10g/dm
2
. The Free Bee is not designed
to be flown in extremely strong winds, yet it handles well the wind velocities of about 6 m/s; only keep in mind the
necessity to have a sufficient spatial reserve so that the model would not be blown away from sight.Many happy
moments with the Free Bee model wishes FreeAir.
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