.
You can't get along without a good sanding block
An assortment of different size sanding blocks are indispensable tools for
model construction. A good general purpose block can be made by wrapping
a 9"x11" sheet of sandpaper around a piece of hardwood or plywood. Use
three screws along one edge to hold the overlapped ends of the sandpaper.
Put 80-grit paper on the block during general construction. Switch to 220-grit
paper for final finish sanding just before covering.
Another handy block can be made by gluing sandpaper onto a 24" or 36"
long piece of aluminum channel stock. Most hardware stores carry a rack of
aluminum in various sizes and shapes. This long block is very useful for
sanding leading and trailing edges accurately.
Finally, glue sandpaper onto different sizes of scrap plywood sticks and round hardwood dowels. These are handy for
working in tight places and for careful shaping where a big block is too hard to control.
WING CONSTRUCTION
Inboard Wing
1.
a. Pin down the 1/16"x1" front
bottom sheeting.
b. Pin down the 1/16"x3/16" balsa
spar cap strip.
c. Pin down the 1/4"x1" trailing
edge.
2.
Cut pieces of 1/16"x3" balsa for the
center section sheeting. Glue and pin in
place.
3.
Cut pieces of 1/16"x3/16" balsa for the bottom rib cap strips.
4.
Glue and pin the rib cap strips in place. Add the 3/16"x1/4" spruce spar on top of the spar cap strip. Use a few ribs to locate
the spruce spar in relation to the trailing edge.
5.
Glue and pin all ribs in place except for the two end ribs located at the dihedral joints. Glue the ribs to the cap strips,
planking, spruce spar, and trailing edge stock.
6.
Glue the inboard and outboard guide
patterns to a piece of scrap plywood. Cut
out the patterns and use the inboard rib
guide to angle W-1A panel end rib. Glue
and pin the rib in place.
7.
Use the outboard rib guide to angle W-
1A outer rib. Glue and pin the rib in
place. Use scrap 1/16" balsa to level the
guide.