Dave:
Take a look at the ruttan wings on a q-1 or q2 it will fit the bill for
what you want. There is one site on the web for free downloads of the q2
info but I do not have the URL at hand. Q1 plan can be had on C.D. for less
than $10 via EBay.

"Dave Schneider" wrote in message
...
Can anyone suggest some home built construction sites where they show the
process of building a spar for a foam composite wing. I'm confused on how
a
spar is built for a foam wing. It doesn't seem like the foam itself
would
provide enough structure to provide a web. It would seem like you'd have
to cut the wing foil, cut out the location of the spar, build the spar,
and
then reinstert that section back into the foam wing.

Thanks,
Dave