Quote:
Originally Posted by Maki4444
what can I do, it seems that the sonar guy is still screwed up.....
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Use the command "Follow the nearest soundcontact" and
do the rest like as in real life
- note the exact time when the bearing is called out.
- note the time difference in seconds
- note the bearing difference, here always 1 degree

Original from here :
http://www.hnsa.org/doc/attack/index.htm, page "Plate X"
Choose any 4-bearing time-intervall, here 5min 2 seconds, and
you get this...

The last question is...
if the contact was
- at 00:00:40 with bearing 287.00°
and
- at 00:03:55 with bearing 288.00°,
what was the bearing at 00:01:48?
A simple question with a simple solution.
The result gives you
- contact course: 90.71° T
Real course of contact was, however, 90.00° T.
A more complex math solution would give you the exact course.
Edit: it is highly probable that the call-out of the soundman "010° degrees" is in reality 009.5° and not 010°. So the round-effect kicks in for every degree. Have this in mind and correct your drawings/considerations when you listen to the command "follow the nearest soundcontact". But this does not alter anything about the precision of the result in general.
Further on the result "contact is at 90.71° T" says nothing about the speed and the position. Thats another story.