Great Planes Spectra Electric Sailplane Kit - GPMA0540 - Manual (Page 6)

parts are in position and it seeps into the joint through
capillary action and bonds the parts within a couple of
seconds. The thicker CA is applied to the parts before they are
joined and it takes up to 30 seconds to cure giving you a few
seconds to position the parts. A related and very handy
product is CA Accelerator Spray (Zip Kicker, etc.). This is
used to instantly cure CA glues of all types.
EPOXY - Epoxy adhesives are two-part resins that are very
strong but need to be mixed before they will cure. This
process along with their heavier weight does not lend itself
well to general construction. Epoxies are used where the
utmost in strength is required. They come in many different
cure times but we will only need 30 minute epoxy.
AN IMPORTANT TIP - Glue should never be
substituted for a good-fitting joint. Take a little
extra time to get a good joint and glue it properly and
it will be much stronger, much neater and much
lighter than a bad joint held together with a glob of
glue!
COMMON ABBREVIATIONS USED IN
THIS BOOK AND ON THE PLANS:
Elev = Elevator
Fuse = Fuselage
LE = Leading Edge (front)
Lt = Left
Ply = Plywood
Rt = Right
Stab = Stabilizer
TE = Trailing Edge (rear)
Tri = Triangle
" = Inches
GET READY TO BUILD
NOTE: It will be helpful to build on a piece of "Celotex"
(available from a lumber co.) or other semi-soft (and flat) sur-
face, into which you may easily suck pins to firmly hold down
the parts while building, and to avoid warps.
1. Unroll the plan sheet. Re-roll the plan inside out and let
it uncurl while you read through this instruction book. This
will help the plan lay flat and give you time to get acquainted
with the building process. NOTE: Because there are
several options to consider when building the SPECTRA,
you should read the instruction book through before
building and then go back and cross off the steps you won't
use to build your model.
2. Remove all parts from the box. As you do, figure out the
name of each part by comparing it with the plans, the die
patterns (p. 3) and the parts list at the back of this book. Write
the part name or size on each piece to avoid confusion later.
If any of the die-cut parts are difficult to punch out during
construction, do not force them! Instead, first cut around the
parts with a hobby knife. After punching out the die-cut parts,
use your T-Bar or sanding block to lightly sand the edges to
remove any die-cutting irregularities.
NOTICE: INSTRUCTIONS IN BOXES ARE VERY
IMPORTANT AND SHOULD BE FOLLOWED CARE-
FULLY.
"TAIL FEATHERS"
TYPES OF WOOD
BUILD THE FIN AND RUDDER
You'll need the following parts:
SPRTS02 3/16" x 3/8" x 30" Balsa Stick
SPRTS03 1/8" x 3/16" x 30" Balsa Stick
SPRTS01 3/16" Die-Cut Balsa Tail Parts
SPECF08 3/16" Balsa Triangle
D 1. Tape or pin the plan down to your flat work surface.
Tape a piece of waxed paper over the fin and rudder portion
of the plan (so you don't glue the parts to the plan).
B A L S A B A S S W O O D P L Y W O O D
6