A kind of fascinating semi-related question that seems simple but the answer is unintuitive.

https://www.wired.com/story/faster/

Blackbird has pushed itself past the wind. On the far side of the mythical barrier, things get weird. Cavallaro feels wind blowing in his face – yet the wind is also propelling him forward at… Cavallaro glances at the GPS-enabled speedometer mounted in the cockpit. The numbers tick up faster than he can report them. “Twenty, no, 22!” He’s shouting into the transceiver: “30!” Running out of lake bed, Cavallaro hits the brakes.

https://hackaday.com/2021/07/02/10-000-physics-wager-settles-the-debate-on-sailing-downwind-faster-than-the-wind/