MOSQUITO 3D PRO - INSTRUCTION MANUAL
page -19-
MOSQUITO 3D PRO --- MOSQUITO
3D PRO --- MOSQUITO 3D PRO
MOSQUITO 3D PRO --- MOSQUI
TO 3D PRO --- MOSQUITO 3D PRO
12. Additional information about helicopter mechanics.
Your MOSQUITO 3D PRO is a full F3C cabaple helicopter. But it depends on the user and its adju-
stment abilities to gain a maximum performance and long spareparts lifetime. In the following we
provide some useful informations about above mentionend.
A - Tight screws:
As a helicopter depends like any flying object on proper mechanic funtion, you should make sure
before each flight that it´s screws are tightened. The most important places are where most
forces stress the connection such as the rotorhead, motor, belt drive and tail frame screws. If a
screw which is fitted into the plastic parts is overtightened, please exchange that sparepart.
B - Balance main rotor blades:
As any machince produced rotor blade will slightly differ in weight and lentgh it is necessary to ba-
lance the blades. You might use a so called rotor blade balance, but a long screw, two washers and
nuts do it as well. Mount both blades directly to each other, straighten them and place the long
screw ends onto a U shaped item, so that the blades can freely swing. One of the two blades will
now, as it is more heavy than the other, swing downwards. To compensate the misbalance just add
small stripes of tape at the outer end of the lighter rotor blade.
C - Main rotor pitch
You will need to buy a pitch gauge in order to check the pitc. There are some carton shapes to cut
out on the internet, but thats not really working out. Mount the pitch gauge and make sure that -
when the three servos are in the center position - the pitch is at 0°. If you use a computer radio, you
can adjust the pitch through the radio. In any other case - the hover pitch is to be adjusted around
9°, depending on the b electronics weight you mounted to the MOSQUITO.
D - Main rotor blades tracking:
As the pitch of both rotor blades is changeable through the CCPM mechanic it is really necessary
that their track (or parallel pitch) is equalized. In order to adjust the tracking (thats to be done by
adjusting one of the two pitch connectors (9) ) it is necessary to slowly rotate the blades. Before
doing that, make sure that there is one of the rotorblades marked with a colored tape near the tip
of the rotorblade. While letting them rotate at slow speed you need to look directly into the rotation
layer (wear eye protection glasses!). You will see now if the white-color-white flickering (as you re-
peatedly see the colored and the uncolored blade) will match in its position or not. If not, adjust the
rotorblade´s pitch connector until you reach a satisfatory result.
C - Tail belt tensioning
The MOSQUITO´s tail belt is fibre-reinforced in order to withstand the forces. A long service life is
only guaranteed if the belt´s tension is properly adjusted. As the belt will warm up while flying, it will
also enlarge slightly. Therefore a cold belt has to be tensioned a little more than a warm one. Please
check the tension at the guide rollers (53) by pressing with your finger on it. You shouldn´t be able
to push it more than 3mm away from that guide roller. Please also check the state of your belt for
missing teeth or other damages regularly and replace it.
D - Gear spacing
It is important to have the gear mesh (teeth) set correctly. If it mesh too thight, it will rob power and
may overheat the motor. If it is too loose, it will probalby strip the gears. A good way of setting gear
mesh is to insert some very thin paper between pinoin and spur gear as you tighten the motor
mount screws. (See picture)
