Great Planes Extra 300S 60 Kit - GPMA0236 User Manual
Page 5
5
There are two types of screws used in this kit:
Sheet metal screws are designated by a number and a
length. For example #6 x 3/4"
Machine screws are designated by a number, threads per
inch and a length. For example 4-40 x 3/4"
When you see the term “test fit” in the instructions, it
means you should first position the part on the assembly
without using any glue and then slightly modify or sand
the part as necessary for the best fit.
Whenever the instructions tell you to glue pieces together,
CA or epoxy may 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 epoxy because you will need the working time
and/or the additional strength.
Several times during construction we refer to the “top” or
“bottom” of the model or a part of the model. For example,
during wing construction we tell you to “glue the top main
spar” or during fuse construction “trim the bottom of the
former.” It is understood that the “top” or “bottom” of the
model is as it would be when the airplane is right side up
and will be referred to as the “top” even if the model is
being worked on upside-down (i.e. the “top” main spar is
always the “top” main spar, even when the wing is being
built upside-down).
❏
1. Unroll the plan sheet. Reroll the plan sheet inside out
to make it lie flat. Place wax paper or a Great Planes Plan
Protector
™
over the area of plan you are working on to
prevent glue from sticking to the plan. Use tape or tacks to
hold the plan and protector securely in place.
❏
2. Remove all parts from the box. As you do, determine
the name of each part by comparing it with the plan and
the parts list included with this kit. Using a felt-tip or
ballpoint pen, lightly write the part name or size on each
piece to avoid confusion later. Use the die-cut patterns
shown on pages 6 and 7 to identify the die-cut parts and
mark them before removing them from the sheet. Save all
leftovers. If any of the die-cut parts are difficult to remove,
do not force them! Instead, cut around the parts with a
hobby knife. After punching out the die-cut parts, use your
Easy-Touch Bar Sander or sanding block to lightly sand
the edges to remove any die-cutting irregularities or slivers.
❏
3. As you identify and mark the parts, separate them
into groups, such as fuse (fuselage), wing, fin, stab
(stabilizer) and hardware.
Zipper-top food storage bags are handy to store small
parts as you sort, identify and separate them into
sub-assemblies.
Get Ready to Build
Building Notes
0"
1"
2"
3"
4"
5"
6"
7"
0
10
20
30
40
50
60
70
80
90
100 110 120 130 140 150 160 170 180
Inch Scale
Metric Conversions
1/64" =
.4
mm
1/32" =
.8
mm
1/16" =
1.6
mm
3/32"
=
2.4 mm
1/8"
=
3.2 mm
5/32"
=
4.0 mm
3/16"
=
4.8 mm
1/4"
=
6.4 mm
3/8"
=
9.5 mm
1/2"
=
12.7 mm
5/8"
=
15.9 mm
3/4"
=
19.0 mm
1"
=
25.4 mm
2"
=
50.8 mm
3"
=
76.2 mm
6"
=
152.4 mm
12"
=
304.8 mm
18"
=
457.2 mm
21"
=
533.4 mm
24"
=
609.6 mm
30"
=
762.0 mm
36"
=
914.4 mm