PZL-140 WILGA
Item code: BH124
Instruction Manual
56
With the wing attached to the fuselage, all
parts of the model installed ( ready to fly), and
empty fuel tanks, hold the model at the
marked balance point with the stabilizer level.
Lift the model. If the tail drops when you
lift, the model is “tail heavy” and you must
add weigh* to the nose. If the nose drops, it
is “nose heavy” and you must add weight* to
the tail to balance.
*If possible, first attempt to balance the model
by changing the position of the receiver
battery and receiver. If you are unable to
obtain good balance by doing so, then it will
be necessary to add weight to the nose or
tail to achieve the proper balance point.
Accurately mark the balance point on the top
of the wing on both sides of the fuselage. The
balance point is located 69mm back from the
leading edge. This is the balance point at
which your model should balance for your first
flights. Later, you may wish to experiment by
shifting the balance up to
10mm
forward or
back to change the flying characteristics.
Moving the balance forward may improve the
smoothness and arrow- like tracking, but it
may then require more speed for take off
and make it more difficult to slow down for
landing. Moving the balance aft makes the
model more agile with a lighter and snappier
”feel”. In any case, please start at the loca-
tion we recommend .
1) It is critical that your airplane be bal-
anced correctly. Improper balance will cause
your plane to lose control and crash.
THE CENTER
OF GRAVITY IS LOCATED
69MM
BACK FROM THE LEADING EDGE
OF THE WING.
2) Mount the wing to the fuse lage. Using a
couple of pieces of masking tape, pla ce them
on the top side of the wing
69mm
back from
the leading edge, at the fuselage sides.
3. Turn the airplane upside down. Place
your fingers on the masking tape and care-
fully lift the plane .
BALANCING
.
1) We highly recommend setting up a
plane using the control throws listed.
2) The control throws should be meas-
ured at the widest point of each control sur-
face.
3) Check to be sure the control surfaces
move in the correct directions.
Ailerons : 12mm up 12mm down
Flap : 30mm down
Elevator : 10mm up 10mm down
Rudder : 25mm right 25 mm left
1) Completely charge your transmitter and
receiver batteries before your first day of fly-
ing.
2) Check every bolt and every glue joint in
your plane to ensure that everything is tight
and well bonded.
3) Double check the balance of the
airplane.
4) Check the control surface.
5) Check the receiver antenna . It should
be fully extended and not coiled up inside the
fuselage.
6) Properly balance the propeller.
We wish you many safe and enjoyable
flights with your
PZL-124 WILGA.
Flap control
Aileron control
Elevator control
Rudder control
12mm
12mm
10mm
10mm
30mm
25mm
25mm
CONTROL THROWS.
PRE-FLIGHT CHECK.
CG: 69mm
CG: 69mm
