Hangar 9 J-3 Piper Cub Assembly Manual page 37

Section 15: Scale Detailing
5. A vacuum-formed scale engine is included. It can be
trimmed and painted with most hobby enamel type paints.
Before painting, be sure to thoroughly wash the scale
engine with soap and water to remove any mold release.
When the paint is dry, glue a small block of balsa wood
inside the scale engine. Trial fit the engine on the cowl.
When you are satisfied, glue the engine in place on the
cowl with epoxy. Wipe away any excess epoxy with a
paper towel and rubbing alcohol.
6. Fuel-proof self-adhesive decals are included. The
following photos and the box top can be used to identify
their location.
Additional Scale Detailing
Added scale detailing can easily be accomplished with a little
imagination. 1/16" black stripe tape can be used to outline the
door. A door handle can be made from a short piece of music
wire. A step can be bent from a scrap piece of pushrod material,
and the fuel cap and float can be easily made from a short piece
of 1/4" dowel and music wire. Of course, no Cub is complete
without a pilot.
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