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FarNorthWest said..
Hi all,
1) How does the SB Race Pro set up behave compared to the Race set up in stronger winds, say 15-22 knots?
2) Does the higher mast makes the Race Pro trickier to ride?
3) Does the higher mast mean considerably more forces on the fin box so boards with regular deep tuttle-boxes (not foil-ready boards) should be avoided?
3) Is the Race Pro really slower than the Race as the SB 2019 catalogue says? I've read here that a pro indicated no big differences on the gps readings.
4) Does the Race Pro need a wider board and/or bigger sail than the Race?
FNW,
I too live in a light wind area, and we're at 6000ft (1828M) above sea level which means we lose 18% of our air density. So lift is what I'm trying to accomplish. I started on a GT foil setup (I have a Foil 147), and with a 7.2 sail, am able to pump it up to a flight in about 10 knots. I've already ordered a longer fuselage (race), the larger front wing (1100) and the smaller tail to match the race configuration. I would like more lift and additional stability when the winds are lighter.
That said, from what I've learned, here are my educated guesses on your answers:
1. It has to do with stability. The larger front wing with create more lift requiring your to adjust your flight once in the air. IF you're going 22 knots with the larger wing, the pitch (up and down) will be much faster and a little more unstable in the higher winds. If you have the smaller one in the front, it will allow you to have a bit more angle of attack (you're more at an angle (pointing up)) to stay in flight. This gives you a little more control, but also can create more drag in less winds/speed.
2. I don't know. The taller mast can help keep you lifted over larger waves, but I'm not sure about how much harder it would be to control. I can't imagine a taller mast where I live, just no need for it and it requires deeper water. Although it will help you pump to a flight a little quicker due to the additional horizontal forces it avoids. The taller mast will also put you in a higher chance of 'going over the handle bars', or pitch-pulling.
3a. yes. the longer the force exerted on the bottom, it is amplified at the tuttle-box.
3b. Yes. Just like I mentioned above, you have more surface moving through the water adding to the overall resistance. I'm not sure about how much drag it would be, but there is drag.
4. Wider board: Not really. The narrower boards are less stable (roll) than the wider ones. Mostly personal preference and how much control you want overall. As for sails: if you get the bigger front wing, you'll get more hydro-lift on the foil. This is the reason I'm switching to a larger front wing: I want additional lift instead of getting a larger sail.
Of all the research I've done, SB has the better foil setups out there. I love the idea of mixing and matching everything.