A
Anonymous
Guest
2E vehicle handbook says sailing craft (unpowered vehicle, wind) can never exceed the wind speed. Yet they frequently do ...
You can wiki it (plenty of literature and speed records to look at), but intuitively, draw a triangle. The two short sides are the boat speed and the wind speed. The long side is the apparent wind created i.e. what you feel from the combination of boat and wind speed. When you get this in the sail, you can use it to exceed the true wind speed.
It's now also possible to sail directly into the wind with a rotating wing sail, but I cannot explain the physics of how that works
You can wiki it (plenty of literature and speed records to look at), but intuitively, draw a triangle. The two short sides are the boat speed and the wind speed. The long side is the apparent wind created i.e. what you feel from the combination of boat and wind speed. When you get this in the sail, you can use it to exceed the true wind speed.
It's now also possible to sail directly into the wind with a rotating wing sail, but I cannot explain the physics of how that works