Cowl Installation - advanced scale models Sukhoi SU-26M Assembly Instructions Manual

STEp 1: inSTALLinG ThE coWL mounTinG BRAckETS
STEp 2: ALiGninG ThE coWL
IMPORTANT Use the simple procedures in this section to make it easy to accurately position and drill the cowl mounting holes so
that they line up with the cowl mounting blocks.
q Test-fit and glue the firewall support plate to the top of the engine mounting
box, using a generous amount of epoxy.

coWL inSTALLATion

q Install the four cowl mounting brackets onto the firewall, making sure that
the end of each mounting bracket is flush with the surface of the fuselage. Use
eight M3 x 10mm wood screws to secure the cowl mounting brackets into place.
IMPORTANT Position each cowl mounting bracket directly opposite the
corners of the engine mounting box - approximately the 2 o'clock, 4 o'clock,
8 o'clock and 10 o'clock positions.
q Draw a line on the fuselage that extends back from the centre of each cowl
mounting bracket. Use a small square (builder's triangle) to ensure that each
line is perpendicular to the front of the fuselage.
q Install your spinner backplate onto your engine, then slide the cowl over
the fuselage. When aligned properly, the back edge of the cowl (at the top)
should be even with the front edge of the cockpit opening and the front of the
cowl should be centred around your spinner backplate.
q When satisfied with the alignment, hold the cowl firmly in place using pieces
of masking tape.
q Use a straight edge to extend each of the four lines you drew previously
onto the cowl.
q Draw a mark on the fuselage, directly behind the back edge of the cowl,
intersecting each of the four lines you drew on the fuselage originally.
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