Hope you can find something useful in this topic:
Солинг в крейсер. - Домашняя верфь...
If you are not building something very original, it's possible to find prototype to your rig, IMHO.
I generally suggest to my customers that for solid spars on small boats they use Iain Oughtred's formulas for diameters. We don't seem to be...
Certainly Scalare 250 is not the biggest collapsible/fold cat, but possibly heaviest.
This russian boat from 1977 is slightly longer (5.5 meter)...
One for sale for about $1000, but in St. Petersberg, Russia
Something like do-it-all-in-one in smaller size
but this boat has daggerboard
If 200lbs isn't a problem, the something like this:
sailing and with tent
this boat sailed around 500 n.m. along the shores of Okhotsk...
Something like that?
It's German „Scalare 250“
Or, if you in the ex-USSR, something like boat on the picture. Definitely faster, cheaper and easier to sail than Laser.
Hobie Wave or...
You are hidden russian orthodox!
Just for the sake of curiosity: What opportunity is Russians looking for? Return gold crosses on Aya Sofya?
some pictures as inspiration :)
Did you see this topic?
Several folding boats are...
Try to look at this FAO collection of simple fishing multihulls. Some of them use plywood, but others are sawed wood planked....