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I did a Transatlantic race with a retired Boeing engineer. He does not fly in airplanes.

No. The sail feels apparent wind, not true wind. Period. How do you think AC foilers go 40 kts in 12 kts of true wind? It ain't by calculating forces using 12 kts!

One half rho v squared A Cl. A is the total area of the sail. Produces lift roughly perpendicular to the ambient flow. If you are in steady state going speed v, the flow the sails see is not the true wind speed, it's apparent speed. In 12 true, the apparent wind is gonna be about 17 or 18 kts, not 12. If steady state, the driving force = drag. End of story. Unless you think Newton was wrong.

Maybe time to change a few things around the organization?

Carnage for how many millions?

Leeward runner.. oops

Looks like the version without the torpedoes may be a bit faster, no?

Why does US have those torpedoes at the foil junctions? Seems like they're nothing but drag.

Is the awlwood satin decent over time? The awlwood description.. "Awlwood MA Gloss Finish has an elastomeric nature of the cured film results in excellent toughness and abrasion resistance giving amazing in-service performance. " The elastomeric nature gives me pause. Anyone have experience with it?

Yes. I did a Bermuda race on that boat, and the girl was the sister of a guy I've known and sailed with off and on for 50 yrs since we were kids- my brother's college roommate. The Concordia 46, other than the unfortunate CO accident was a great boat.

Wrong boat i think. That was Concordia 46.

Interesting.. i wonder how the Reynolds numbers compared with the heli blade spinning in air vs the keel in water.

ya I got the work-around using expressvpn. But why is it that the US is fucked with, trying to jack viewers for $175, while I can watch it just fine if I vpn out of France? Corporate slime.

Love the bitchin about petroleum companies by folks who sail on boats that are mostly made of petroleum products. Pretty funny.

Is it day racing or short distance? If so, J111 or J122 are good ORC for that. J111 will be the easiest and cheaper to sail compared to a J122 or Swan 42, and be pretty much as fast.