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Great Planes Profile 38 - GPMA0487 User Manual

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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"

This is a number six screw that is 3/4" long.

Machine screws are designated by a number, threads per
inch
, and a length. SHCS is just an abbreviation for “socket head
cap screw” and that is a machine screw with a socket head.

For example 4-40 x 3/4".

This is a number four screw that is 3/4" long with forty
threads per inch.

When you see the term

test fit in the instructions, it

means that you should first position the part on the
assembly without using any glue, then slightly modify or
custom fit the part as necessary for the best fit.

Whenever the term

glue is written you should rely upon

your experience to decide what type of glue to use. When a
specific type of adhesive works best for that step, the
instructions will make a recommendation.

Whenever just

epoxy is specified you may use either

30-minute (or 45-minute) epoxy

or 6-minute epoxy. When

30-minute epoxy is specified it is highly recommended that
you use only 30-minute (or 45-minute) epoxy, because you
will need the working time and/or the additional strength.

Photos and sketches are placed before the step they

refer to. Frequently you can study photos in following steps
to get another view of the same parts.

Fuse = Fuselage

Stab = Horizontal Stabilizer

Fin = Vertical Fin

LE = Leading Edge

TE = Trailing Edge

LG = Landing Gear

Ply = Plywood

" = Inches

mm = Millimeters

SHCS = Socket Head Cap Screw

COMMON ABBREVIATIONS

IMPORTANT BUILDING NOTES

EASY-TOUCH

BAR SANDER

A flat, durable, easy to handle sanding tool is a necessity
for building a well finished model. Great Planes makes a
complete range of Easy-Touch Bar Sanders and
replaceable Easy-Touch Adhesive-backed Sandpaper.
While building the P-38 Profile, two 5-1/2" [140mm] Bar
Sanders and two 11" [280mm] Bar Sanders equipped
with 80-grit and 150-grit Adhesive-backed Sandpaper
were used.

Here’s the complete list of Easy-Touch Bar Sanders and
Adhesive Backed Sandpaper:

5-1/2" [140mm] Bar Sander (GPMR6169)
11" [280mm] Bar Sander (GPMR6170)
22" [560mm] Bar Sander (GPMR6172)
33" [840mm] Bar Sander (GPMR6174)
44" [1120mm] Bar Sander (GPMR6176)
11" [280mm] Contour Multi-Sander (GPMR6190)

12' [3.66m] roll of Adhesive-backed 80-grit sandpaper
(GPMR6180)
150-grit (GPMR6183)
180-grit (GPMR6184)
220-grit (GPMR6185)
Assortment pack of 5-1/2" [140mm] strips (GPMR6189)

We also use Top Flite 320-grit (TOPR8030, 4 sheets) and
400-grit (TOPR8032, 4 sheets) wet-or-dry sandpaper for
finish sanding.

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