Cross Spar Tension System.
I was lucky to find a suitable cross fitting in my spares! The cross spar is a 4mm fibreglass solid rod and fits into a pair of brass tube ferrules at the end of the leading edge pockets. The rest of the spars are 4mm carbon fibre tube. I was unable to find any glass fibre tube in this size and might have to step down a size if the solid rod proves too heavy. The spring effect is governed by a stopper on the spine. If neccessary I will be able to fit spacers here to increase the pressure.
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