Dynaflite DYFA2016 - Manual (Page 30)

Fuselage:
1. Bottom*
2. One side, then the other
3. Top forward, then aft of the hatch
4. Top aft of wing
5. Hatch
* Many modelers cover the forward bottom section of
the fuselage with two layers of covering or glass cloth
and paint the forward bottom section for better
protection during landings.
Wings:
1. Center panel bottom, then top
2. Outer panel bottoms, then tops
3. Ailerons
4. Hatch
If you decided to cover your Bobcat before you
glue the stab to the fin, return to page 15 and
follow the instructions to glue the stab.
U 2. Lay the center section of the wing on your
building table. Place weights on top of it to hold it
down. Twist the trailing edge upward while you heat
the covering until the wrinkles disappear. Let the
covering cool. Measure the distance between the
trailing edge of the wing at the tip and your building
table. It should be 1/4". You may also have to heat
the bottom of the outer wing panel.
U 3. Add washout to the left outer panel the same
way. Make sure the center section of the wing is flat
and warp free as described in step 1.
Q 1. Due to the lightweight structure of the Bobcat
and the shrinkage of the covering, the wing and stab
can warp or twist. Correct the twists by carefully
twisting the part in the opposite direction. Heat the
covering with your iron or heat gun until the part is
flat and free of warps.
Add "washout" to the wing tips. Washout is where
the trailing edge of the wing at the tip is twisted
upward. This gives the wing tip a lower angle of
attack than the rest of the wing, which will reduce
the tendency for the wing to "tip stall."
Use the instructions below to hinge the ailerons,
elevator and rudder (if you have built a steerable
rudder). Hinge the elevator f i r s t because it's
the easiest.
CUT THE COVERING
AWAY FROM THE SLOT
U 1. Use your hobby knife and a sharp #11 blade to
remove a small strip of covering from the hinge slots.
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