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Tuesday, December 05, 2006


We left off last time with the shaped and filled fuselage, ready for spraying, now four cycles of waterpaper sanding and spraying the results are almost good enough for moulding.

Sanding is now all 1200grit wet and final polishing with burnishing compound .

Attention now shifts to the wing centre section, which is roughed out of superwood using lazercut MH32 stainless steel templates for the profiling.

The wing panel is carefully marked on the leading and trailing edge and checked for accuracy, it now really pays to work on a flat surface, and use a straight edge.
The initial work to be carried out, is to now remove the templates and route or plane down as carefully as possible to the profile on each end. The templates are re-attached and using your straight edge , scrape across the (dusty) surface, the high spots will show up, work these down and recheck. Finally I sand with 100 grit and a belt sander to a smooth shape.

The trailing edge should look dead straight as well as the leading edge (marked lines) an error here can lead to a warped wing, the next post, we will sand slighty under the profile and start screeding back up to the correct size. Sounds difficult but only took one afternoon,
more later.

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