10 |
P a g e
Edge 540/2.6m
Parts Required:
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Cowl Assembly
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Fuselage Parts Bag
Tools Required:
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Electric Drill
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Drill Bit 3mm
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3mm Hex driver
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Steel rule(s)
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Tape Measure
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Masking tape
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Marking pen
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Epoxy (30min or Hysol)
The mounting of the cowl is one area where you should take your
time, don’t rush this. While it’s not difficult, careful marking and
alignment will make the outcome far more satisfying. As you can
see the cowl is a two piece configuration, which requires you mate
both halves of the cowl, and to properly align the cowl as a whole
on the fuselage. The cowl assembly is pre cut and trimmed at the
Composite Arf factory and should require very little alignment and
adjustment to make the perfect fit.
First up you should join both halves of the cowl together. Using
masking tape, temporarily join both halves of the cowl. The overlap
at the front of the cowl may need some sanding to make the joining
of both cowl halves satisfactory (see top picture). Be careful not to
remove more material than is absolutely necessary. When you are
satisfied with the fit of both halves, mark a line 5mm above the join
on the top portion of the cowl. The first hole to drill should be the
front bolt closest to the spinner. Make a mark on the cowl at the
centre between the spinner and the air inlet hole. Make sure both
halves of the cowl align properly, and drill your first hole! Take a
breath, stay calm, and do the other side! Well done! We’re on our
way.
On the side of the cowl, mark your next hole 10mm from the rear
edge of the cowl. From that point make a mark 70mm toward the
front of the cowl, and then repeat 3 more times. In all, each side of
the cowl will have 7 bolts. When you are satisfied with your
placement, use a 3mm drill bit to drill the required holes. Insert a
3mm cap head bolt in each hole with a T-nut attached upside
down from the inside of the cowl. The first hole 10mm from the
rear edge of the cowl does not have a T-nut attached to the inside
of the cowl. The bolt in this hole has double duty, being used to
mount the cowl assembly to the fuselage. You will need to mix up
some epoxy and micro balloons to apply around the edge of each
of the T-nuts. Ensure you lightly sand the area that each T-nut sits
on first. Remember
NO
T-nut is fitted on the first hole!!!
Set cowl aside and let epoxy cure.
Cowl