We are continuing our tests of L/V foils. The constraints imposed for this series are:– Foils made of straight segments with minimum (hydrodynamically clean) transition radius.– Total foil horizontal projection not more than 400mm to respect the inboard exclusion zone (tip-to-tip measurement) in the A Class Rule.   The two main variables to explore are:-Foil...Read More

Some thoughts on our recent testing with heave-stable ‘acute L’ foils (L/V for short). This experiment had one aim: To prove that a simple cheap upgrade is possible to convert existing A Class catamarans to stable foiling without major structural modifications. The story so far We knew from previous testing that L/V foils give stable...Read More

One more post on appendages. Then we can look at other areas of development such as aerodynamic tailoring and control systems/ergonomics. Glenn Ashby balancing nicely on J foils and Paradox rudders. Photo by Rhenny Fermor of www.sailingshots.com.au Steering system The new kinetic techniques used to promote early flight, combined with much higher top speeds, really...Read More