Yeap!
The """method""" I present is what to do
after you get on a collision course with the target.
How do I get there?
Trial and error. The only thing that helps me is that if I succeed in stabilizing the targets bearing and the subs speed is "appreciable" then chances are that I'm moving parallel to the target, if my speed is low then I'm probably near a non steep collision course to the target. Plenty (x2) room of error, much more so if the target is "ziging".
Other option is doing it by the book (see link in my previous post). Sometimes I don't do the procedure correctly, but I'll tell you this, proper data collection to implement "official" methods can be time consuming (at least for me
) as in: the target is passing in front of you while you're are drawning lines on the Maneuvering Board (had that happened too!
).
Of course with radar things can get mush easier.
If you get dead ahead of the convoy, I totaly agree there are more straight forward methods to estimate the target's speed. I was just proposing a "maneuver" with which you can use grayrider's work as it is now.
.