Hey Everyone, thanks for your interest. I appreciate the support. This being said, I’m probably going to take a step back from the forums for a bit. I get people telling me I write to much, then people asking for more, it’s a lot of [thankless] work. I will just let the masts speak for themselves, like all the other brands. I mean seriously try to google the mast sections for any other brand . It all kinda makes me wonder I should be so open and honest with my designs, especially when so much engineering, thought, and my savings goes into them.
The 75cm Evolution Surf went on a 20 mile downwinder today in the Gorge with the new Unifoil Nimitz board and Progression 200-rider loved it. I winged the 85cm Evolution Wind with the Spitfire 1030, it was amazing. What I realized riding today, was that if the mast is really good, you shouldn’t even feel it. And I didn’t. Maybe you all know that. It sliced the water like a butter knife, and tracked unlike anything I have ever felt. The Evolution Wind is by far the stiffest mast at the show, and the longer chord length down low is attributable to that. It was instantaneous feedback with the foil, critical for my beginner wing skills.
As for sections, the easy way to put it is that both masts are 16mm thick about 50mm from the bottom and 50mm from the top of the shortest length. That is constant thickness, no weird lofting or tapering. The surf is 110mm chord length, and the wind 130 in these regions. Above these points, the masts are 19 or 20mm thick x 120mm chord length, respectively, all the way to the mount. It leads to an incredibly stiff setup in the longer lengths, and an all around more progressive feel. As ride height increases, you don’t have a massive drop off in drag due less submerged length and less wetted area due to tapering. It’s a much shallower drag vs. length curve-which is something you may or may not want. I personally like it. I don’t like the drag changing dramatically depending on ride height. I’d rather have more consistent drag, even if it’s a little more, because that is more predictable and forgiving. The last thing I want when I’m foiling near the end of my mast is for speed to pick up and lift to increase. Also as I’ve discussed at length in other blogs, foiling to close the surface is not efficient for wings. They like to be around 1/2 span length from the surface for most efficient flight. That’s not my opinion, that’s from America’s Cup foil designers. The surface is not an efficient place to fly, it’s why dolphins completely exit the water and jump to breathe, and then swim well below the surface. Breathing and swimming near the surface is not efficient.
Anyway I’m super stoked with how today went. It was a great show, and there’s a lot of great gear here. Both masts showed well; people really loved the designs, but more importantly they rode really well. It was pretty cool to walk around the show and pull out an adapter for Unifoil and another for Axis and be foiling the latest designs. It was so great to meet Eric in person after his podcast largely got me into this whole market. Stay tuned for a new episode re: evolution designs! Thanks again to everyone who’s been supportive of me and the project, it really means a lot.