Does anyone have pictures of how these kind of frames
were built?
It would not suprise me if you can order a copy of the military standard
pertaining to lacing. It will tell all.
There are also a few older Air Corps technical orders dealing with lacing
and harnesses (and all of the odd connectors nobody uses anymore) floating
around.
Is there a tutorial anywhere that illustrates these
various stitches and
where/why they are to be used?
The easiest (but somewhat simple) reference I know to get a hold of is an
old ARRL handbook.
William Donzelli
aw288(a)osfn.org