Thank you. I used to windsurf growing up, my parents had a couple of boards so I am familiar with how the wind feels on the sail. Originally I had the player control the sail's orientation and the board but it was cumbersome. I switched it over to the character automatically aligns himself with the wind and let the game feel more chill and arcadey.
For sail/wind calculations I used simplified lift/drag equations for a sail, anything more complex felt like it took away from the experience and brought up questions like "why am I not moving right now" or "why am I not moving any faster".