Seagull Models NIEUPORT 28 REPLICA, Assembly Manual

Page: 42 / 45

NIEUPORT 28 REPLICA
Instruction Manual.
42
BALANCING.
1) It is critical that your airplane be
balanced correctly. Improper balance will
cause your plane to lose control and
crash. THE CENTER OF GRAV-
ITY IS LOCATED
100MM
BACK
FROM THE LEADING EDGE OF
THE WING AT THE WING ROOT.
2) Mount the wing to the fuselage. Place a
piece of masking tape on the top of each
wing 100mm back from the leading edge
at the wing root.
3) With the model inverted, place your
fingers on the masking tape and carefully
lift the plane. This is the 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 char-
acteristics. Moving the balance forward
may improve the smoothness and ar-
row- 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.
*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.
With the wing attached to the fuselage,
all parts of the model installed ( ready to
fly), and empty fuel tanks, hold the mod-
el at the marked balance point with the
stabilizer level.
1 .
100mm
CONTROL THROWS.
Ailerons:
High Rate :
Up : 25 mm
Down : 25 mm
Low Rate :
Up : 15 mm
Down : 15 mm
Elevator:
High Rate :
Up : 25 mm
Down : 25 mm
Low Rate :
Up : 15 mm
Down : 15 mm
Rudder:
High Rate :
Right : 30 mm
Left : 30 mm
Low Rate :
Right : 20 mm
Left : 20 mm
Lift the model. If the tail drops when
you lift, the model is “tail heavy” and you
must add weight* to the nose. If the nose
drops, it is “nose heavy” and you must
add weight* to the tail to balance.