This thread comes closest to a question I have about modifying the Fire Fly for greater speed. I just purchased the FF plans and, when built, will be paddling it mainly for exercise on a local reservoir with very occasional trips to the West Coast.
So my question is this: How narrow can the Fire Fly be built and still end up with the stability of the Slingshot, which is shown as less stable than the Fire Fly. Would a reduction in beam (and no other changes) to say 20 inches from the 22 make any noticeable difference at sprint and near-sprint speeds? And where would you reduce the beam over the length of the boat to maintain the same prismatic coefficient?
I'm pretty sure Jeff went through all these considerations and calculations before settling on the final design of the Fire Fly, but I would be really interested in hearing his thought process...
