Final Assembly; Mount The Cowl - GREAT PLANES EXTRA 330S Instruction Manual

FINAL ASSEMBLY

Mount the Cowl

At this point your power system installation–whether it's gas,
glow or electric–should be complete. For electric motors the
ESC and motor should be mounted and battery installation
should be fi nalized. For gas or glow systems, the engine
should be mounted and the fuel tank should be installed with
all the lines connected. For gas engines the ignition module
and ignition battery should also be mounted and connected.
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1. Glue the six 9/16" x 9/16" x 13/16" [15 x 15 x 20mm]
hardwood cowl mounting blocks to the plywood cowl
mounting block retainers. For the top two assemblies and
the bottom two assemblies, be certain to make a right and
left by making them a mirror image. Also note that the outer
edge of each block is inset 1/32" [1mm] from the outer edge
of the retainers.
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2. Use medium-grit sandpaper to roughen F1 where each
cowl mounting block will be glued. Use 30-minute epoxy to
glue the cowl mounting block assemblies into position as
shown. Since there is no really good way to clamp the bottom
four blocks, apply epoxy to both surfaces (F1 and the blocks),
allow to partially harden until tacky, then position the blocks
onto F1. Monitor the blocks for a few minutes and reposition
them as necessary until the epoxy is tacky enough to hold
them permanently.
❏
3. After the epoxy from the previous step has hardened,
mark the middle of each cowl mounting block.
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