SUBSIM Radio Room Forums - View Single Post - What is your TDC up to? the Law of Cos, the perfect torpedo shot

starvingartist507 · 06-04-07, 08:06 AM

Its important to note my method only calculates the AOB for the first mark, as in the first time you grabbed range and bearing. Then add the number of degrees that the target has "tracked"

1. Sine of ( bearing change ) times Range at mark 2
2. This divided by distance merchant traveled
3. inverse sin of the result = AOB at first observation
4. if the merchie has moved 25 degrees since then, add 25 degrees to AOB
presto!

I noticed I had this wrong in the doc. Corrected it!
Hope this was a little more clear.
also added how to find exact heading, if you wanted to know... but not many people should need that.

06-04-07, 08:06 AM	#9
starvingartist507 Seaman Join Date: May 2007 Posts: 42 Downloads: 0 Uploads: 0	Its important to note my method only calculates the AOB for the first mark, as in the first time you grabbed range and bearing. Then add the number of degrees that the target has "tracked" 1. Sine of ( bearing change ) times Range at mark 2 2. This divided by distance merchant traveled 3. inverse sin of the result = AOB at first observation 4. if the merchie has moved 25 degrees since then, add 25 degrees to AOB presto! I noticed I had this wrong in the doc. Corrected it! Hope this was a little more clear. also added how to find exact heading, if you wanted to know... but not many people should need that. Last edited by starvingartist507; 06-04-07 at 08:53 AM.