Dynaflite DYFA2014 - Manual (Page 11)

Airfoil - A curved structure designed to create lift by
the reaction to air moving over its surface.
AMA - Academy of Model Aeronautics
A.R. - Aliphatic Resin glue (wood glue).
Bulkhead - A structural member in the fuselage used to
strengthen and establish the shape of the cross section.
CA - Cyanoacrylate glue
C.G. - Center of Gravity
Clevis - Used to attach the pushrods to the control
surfaces through a control horn.
Control horn - A lever projecting from a control
surface which translates motion from the pushrod
and clevis.
Die-cut - Parts of sheet wood that are precut so the
modeler can use them with a minimum of preparation.
Dihedral - The angle formed by the wing panels
where they intersect.
Doubler - Part of the structure that is used to
reinforce a member by lamination.
Elevator - The horizontal moving surface hinged to
the stabilizer. Used to raise and lower the tail in
flight, thus causing the aircraft to pitch about the
lateral axis.
Fin - The fixed vertical stabilizer
Fuselage - (fuse) The structure of an airplane to
which the wings and tails are attached.
Glider - A heavier-than-air unpowered aircraft.
Leading edge - (LE) The forward edge of a wing,
stabilizer, fin etc...
Pushrods - Wooden or wire rods which transfer
motion from the electronic servos to the aircrafts
control surfaces.
Rib - A structural member which maintains the
contour of the wing surface.
Rudder - The vertical control surface hinged to the
fin and used to control yaw about the vertical axis.
Slope soaring - the art of remaining aloft in a glider
or sailplane by utilizing the vertical components of
air currents caused by wind being deflected up and
down a cliff or hill.
Spar - The principle spanwise structural member of a
wing or stabilizer.
Tierod - Structural member that connects two halves
of a split elevator.
Trailing edge - (TE) The rearmost edge of the wing,
stabilizer, fin, etc...
Towhook - a device used to connect the tow line to
the aircraft during lunch.
DYNAFLITE BUTTERFLY. .DYFA1010
The Butterfly is a "powered sailplane" or "motor
glider" and is an ideal model for learning to fly radio
controlled models. Because of its large wingspan and
light wing loading, the Butterfly is a gentle model that
will give you plenty of time to think and react. The
Butterfly does not require a powerful engine. Any .10
to .15 cu. in. 2-stroke will do the job - all the engine
has to do is provide a little thrust and the large wing
will do the rest!
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