Like any journalistic endeavor, a lot of great thoughts end up on the editing floor. Thought the foiling talk is over, the discussion is not!

Below are some extras from crazy new and old friends who are on the “emerging” side of the sport. I”LL ADD MORE TONIGHT


From Jack Gierhart, Executive Director of US SAILING:

Jack Gierhart, US SAILING

Jack Gierhart, US SAILING

“This area of sailing is driving a lot of interest and excitement, creating
a whole new approach that will attract interest from new audiences and
potential participants. I see corollaries between the developments in
sailing with kites, multihulls and foiling, and what happened in skiing
with snowboarding, telemarking, backcountry, boarder cross, kite skiing,
etc. that has help rejuvenate the tradition sport of skiing and add
entirely new angles. While not everyone is going to jump on a moth or a
foiling kite, their interest will be peaked and potentially directed
towards other platforms and options. Anything that creates new interest
and excitement in sailing will be good for the future of the sport. While
I am not sure the recent AC had a direct impact on sailing participation
(possibly a bit in the Bay Area), it has certainly had an impact on
product development which is driving these new segments and evolution of
sailing and generating new interest. An indirect benefit.

“At US Sailing we need to follow these developments and make sure our
programs and services to sailors and organizations support these
developments and foster an environment that encourages this evolution. US
Sailing realizes the marketplace does a great job driving innovation; we
need to embrace this and insure we evolve our programs to take advantages
of these innovations and help create an environment where they can spread
and prosper. We look forward to working with this part of the sailing
community to push developments into the mainstream.”

From Tyler Doyle, President Doyle:

Doyle CFD Rendering

Doyle CFD Rendering

“I think the rapid development of foiling is opening up all sorts of exciting new design and analysis opportunities in the industry. As I’m sure you know the hydrodynamics of foiling have been understood for a long time but it has only been recently that modern laminates and construction processes have evolved to the point where the structures needed for foiling can be made light and strong enough to make foiling dreams a reality. So far we haven’t worked directly on any foiling projects however most if not all of the high performance sailing projects we’ve worked on recently from 90 ft cruising catamarans to planing 100 ft monohulls have at least considered foiling. We have worked on a few projects that don’t go all the way to foiling but use horizontal foils to either partially lift the boat out of the water or create down force to help with stability.

“Foiling and other creative appendage designs are great for our CFD consulting business because it’s exactly the type of thing we can simulate accurately and usually much quicker than a similar tow tank test program. Typical hulls and appendages have been developed and refined long enough that there is a huge amount of knowledge that just needs to be adapted for a given project. Foiling is just the opposite, there a few proven design concepts that designers are scrambling to try and apply to new projects however usually changes are needed that are not well understood and need to be simulated or tested to get right. Simulating foils isn’t easy because you need to model things such as the water free surface, turbulence and cavitation to get the performance right which creates computationally demanding simulations. The type of CFD we use most, RANS CFD, is well suited to the problem and our approach of using open source CFD codes and cloud computing results in cost effective simulations that can fit into reasonable design budgets. The older approach for simulating hulls and appendages using panels codes that only model surface conditions isn’t up to the task of modeling foiling performance correctly.”