Been so many cuts and splices that I go for a complete rebuild and take the oppo to go down the Imperial measure route, so that the three flotation panels are each one foot by three. The upper spars are extended to the full eight feet and split 3:3:2 twixt front and back either side of said panels. The lower spars therefore remain five feet apiece and support hydroskis of eight and a half feet in length, so that their trailing edges provide cover for the propeller tips that will be mounted to align with those upper spars, which are extended so that:
(a) there is room for four 22" props for hover, fore and aft of flotation panels.
(b) there is accommodation for a tailplane and fins, should they be required.
The machine will be painted black, because the best quality tins of spray paint I have left over in the workshop happen to be that colour. Also, should we go down a carbon fibre route then we'll know how it will look in advance I guess?
The chassis as seen weighs 6.40 kilos and each power-pack (viz. battery, ESC, motor and propeller) amounts to 0.80 kilos, so that the boat with a pair of electrical motors is just eight kilos in all.
This means as a rule of thumb the craft weighs around one kilo or 2.20 pounds per foot of length, whilst the last time I looked power-boats weighed a hundred kilos per metre or 67.69 pounds per foot.
