Dynaflite DYFA3901 - Manual (Page 5)

• Whenever the instructions tell you to glue pieces
together, thin CA should be used. When a
specific type of glue is required, the instructions
will state the type of glue that is highly
recommended. When 30-minute epoxy is
specified, it is highly recommended that you
use only 30-minute (or slower) epoxy because
you will need either the working time and/or
the additional strength.
• Do not throw away any leftover material until
after you have completed your model. Some
small pieces of leftover balsa or plywood are
used during construction.
This kit is built using three types of glue.
Cyanoacrylate - CA glues cure almost instantly and
are moderately strong. There are three common
types used: thin, medium and thick. Thin CA cures
the fastest but will not span gaps between parts.
Medium and thick CA are used where parts do not
fit perfectly. CA glue does not bond well to most
plywoods and hardwoods. CA glues are also brittle.
When using CA glues we recommend keeping a
bottle of CA debonder on your building table in
case you need to undo a joint or "un-stick"
your fingers.
Aliphatic Resin - Resin glues require that parts be
pinned or clamped together while the glue dries -
typically 15 to 30 minutes. Resin glues are very
strong and work well with balsa and plywoods.
Airfoil: A curved structure designed to create lift by
the reaction to air moving over its surface.
C.G. (Center of Gravity): This is the point at which
the model balances forward and aft and side-to-side.
Clevis: A small clip which is threaded onto the wire
end of a pushrod and connects the pushrod to the
control horn of a control surface. The threads allow
fine adjustment of pushrod length.
Control Horn: The arm which is attached to a
control surface at the hingeline and is connected to
a pushrod.
Die-Cut Parts: Precut parts stamped out of a sheet of
wood. The parts require a minimum of preparation.
Dihedral: The V-shaped bend in the wing. Typically
more dihedral causes more aerodynamic stability in
an airplane, and allows the rudder to control both
the roll and yaw axis.
Doubler: Part of the structure that is laminated to
another part to increase its strength.
Elevator: The hinged control surface located at the
trailing edge of the horizontal stabilizer, which
provides control of the model about the pitch axis
and causes the model to climb or dive. The correct
direction of control is to pull the transmitter elevator
control stick back, towards the bottom of the
transmitter, to move the elevator upward, which
causes the airplane to climb. Pushing the control
stick forward will cause the model to dive.
Epoxy - Six-minute epoxy cures the fastest; it sets
within six minutes but is not fully cured for one hour
or more. Thirty-minute epoxy is the strongest as it
allows the epoxy to soak into the wood thoroughly.
While it sets within 30-minutes, it is not fully cured
for two or more hours.
Foam Rubber: A soft foam material used to wrap
the receiver and receiver battery for protection.
Gusset: A brace used to reinforce the joint between
2 parts.
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