Carl Goldberg GPMA1993 Skylark 70 Sport ARF - Manual (Page 17)

17
BALANCING
IMPORTANT: NEVER NEGLECT THIS STEP WITH
ANY AIRPLANE. If you try to fly a plane with the
balance point behind the recommended range,
you run the risk of having an unstable aircraft and
the strong likelihood of a crash. TAKE THE TIME
TO PROPERLY BALANCE YOUR MODEL!
To determine the Center of Gravity, measure back on
the fuselage 3-1/2" from the leading edge of
the wing.
The C.G. range for this aircraft is 3 1/4” to 3-
3/4".
Place the fully assembled aircraft on a model balanc-
ing stand, as shown above. You can make this simple
set-up with a couple of ¼" dowels with rounded tops,
spaced 5" apart. Alternatively, lift the model under the
wing near the fuse by your finger tips. (You may wish
to get help from a friend if using the latter method.)
Referring to the recommended balance range for
your model, move the position of the plane on the bal-
ance stand until the model is level or the nose slight-
ly down. If the is tail heavy, shift the R/C equipment
away from the heavy end of the model and recheck
until the model will balance within the acceptable
range. If shifting the R/C gear still doesn't balance the
model, add weight to the far end of the nose or tail,
respectively, until the model is correctly balanced.
The least weight is needed when added as far back
or forward as possible. Fasten the weight perma-
nently in place.
APPLYING DECAL
1. † Using glass cleaner and a soft cloth, clean
model surface thoroughly before applying the
decal.
† Cut the decal sheets apart in sections, as
needed. Fold the decal in half, front to rear.
Open at the fold and lay the decal out straight.
The protective backing will bubble away from
the decal at the fold.
† Using a scissors, cut the backing along the
bubble, removing a strip of backing about 1"
wide. Carefully position the decal on the
model and stick it in place. Then, working
from the center, rub the decal down while
peeling off the remainder of the backing.