There are some similarities with the constant bearing method since my technique exploits the same mathematical constant which is lateral_speed = speed * sin(AOB), the gyro angle being directly related to lateral_speed.
In my opinion, the real new trick here is the use of the horizontal centiradians scale which is really faster than maneuvering the sub to get a constant bearing. This is what I haven't seen anywhere else, and would like to know if it had been documented before.
I understand one could do it using direct bearing change but I wonder if bearing measurement is as accurate as the horizontal scale...
