The value of full scale mock-ups cannot be underestimated at this stage of spring development.




I’ll ponder on what I’m seeing here, for awhile.

No doubt all that’s needed is to deepen that scallop in the butt of the limb by a small amount.  That should provide enough clearance to prevent the spring chaffing on the straight stanchion as it is now.

In torsion catapults,  spring size really does matter.   ….So vital to keep our springs as girthful as possible!



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