Kayleen's Ideas: Increasing G absorbance of seat mounts

I recently posted some thoughts on a stall resistant wing. Along with that, I have a few other thoughts on small aircraft safety issues I'd like to develop (none of this is for high performance craft; if I could, I'd like to design a small plane to be the equivalent of the family car in terms of price, ease of use and safety):

(1) increasing fire resistance of fuel tanks for light aircraft
(my thoughts are along the lines of having the tank enclosed in a shell filled with foam, with the idea that anything that penetrates the fuel tank also penetrates the foam shell, thus resulting in foam automatically being there; unfortunately, I haven't worked out a solution for gravity draining the foam away from the puncture [maybe a pressurised foam shell?], and I don't know if the quantities of foam required would be too heavy);

(2) improving the G absorbing properties of seat mounts.

This post has now been developed to cover the second of these ideas, which is based on the notion of providing attachment points filled with small spheres of varying size and flexibility. The smaller spheres have a larger surface area, but less travel: combined with a more flexible material, perhaps these could be used to absorb G forces for lighter people. The larger spheres have potential for a greater distance of travel: perhaps this could be combined with a firmer material to allow absorbance of G forces for heavier passengers?

Look at the following notes and sketches.