Dihedral can be built into the spars in a manner similar to that use by
Jodel builders.
http://www.jodel.com/index.asp?p=withy&projects
The Jodel Spars are somewhat wider than the KR's but the method of
construction is similar, and I believe that there is an approved
modification to the Jodel Spar to make it in a similar fashion to that of
the KR. Anyway, if you look at the spar pics toward the bottom of the page
you can see the way the spar caps have been scarfed to produce the angle.
This smae method could conceivably be used to build in the dihedral on a one
piece spar.
The problems with a one piece spar for the homebuilder would be one of room.
you will have a great deal of difficulty constructing the wings in a typical
home setting, forcing the builder to seek a hangar earlier to finish
construction.
Peter Bancks
Ballina
Australia
