I am looking at running a underwater compass course involving an obtuse angle. I know all the particulars (side lengths, angles) but I am trying to figure out how I would execute this course without all the knowns, a real live situation.
Assuming I can accurately measure my swim distances and there isn't any current:
Starting at a point, say a boat anchor, swimming due North on a 0 deg heading for 57 ft.
I vector left and swim 30 ft on a 315 deg heading.
Beside surfacing and looking to see where the start point at the beach or boat is, how would I determine what my return vector is to get back to my start point?
Doug
Assuming I can accurately measure my swim distances and there isn't any current:
Starting at a point, say a boat anchor, swimming due North on a 0 deg heading for 57 ft.
I vector left and swim 30 ft on a 315 deg heading.
Beside surfacing and looking to see where the start point at the beach or boat is, how would I determine what my return vector is to get back to my start point?
Doug