Glider development is said to be German rocket science, but after a lot of research I find it isn't. Some country's build there first glider and prove it to be one of the worlds best the JSI ,Sparrow hawk. etc. Gliders are like racing boats and cars. they follow the trends, of development and they finish very much the same. When fibreglass gliders came along the home building form plans stopped and if you wanted a new glider you had no choice but to pay big money for it. My aim is to change this. A high performance glider and self launch. 90% of new gliders now have some sort of motor. It will have all the latest design improvements, and of the highest performance. No specials moulds, i think this is where most people think inside the box. Yes a foam core, not a hot wire foam core and glass,this wont work on a glider with the filler shrinking at different rates, and in no time the 4 th max surface roughness is exceeded. Using the same 60kg sq m foam 5mm thick when glassed one side only it will still flex, bonded over foam ribs. When glassed on both sides the shape is locked in. not only that the surface is very flat , there is very little filler needed leaving little work to finish off for paint. The learning curve here that with the foam ribs ( which are not in a moulded wing) make for a very stiff piece, in turn makes weight. this is another learning curve. The glider is an 18m 4 piece wing self launch, which is where gliding is going. And designing a build process one can do at home with hand lay up. but you will need a lot of time on your hands and like being in the workshop, but then it is a very special aircraft, and not many could afford to go and buy a new one. but 15k and hard work could get you one.