SUBSIM Radio Room Forums - View Single Post - Stupid questions about ... what I have read and studied.

Zerogreat · 08-29-05, 02:56 PM

No, you dont have to remember the frequencies, they are displayed in the NB station

I will post a picture to explain what i mean

Sonar Demon is for getting target's speed. You ahve to identify the target first, the look into USNI database (in DW) and see its TPK (turns per knot) value. Most submarines have TPK of 7. Then in the Demon station, select the appriopriate contact (it must have a tracker assigned in broadband) and you will see waterfall of lines... enter the TPK value and align cursor wtih tle LEFTMOST line, and you will get target's speed

For TMA - its just a geometry

If you know the targets speed enter it, and then try to place the "ruler" in such way that each tick on teh ruler is aligned with appropriate line ... you can also check the "dot stack" in top left corner. If all the little dots are on the line, your solution is probably correct. But if you dont know the target's speed there may be infinite solutions! In such case, change your course, and eventually then there will be only one (geometry, huh

).

08-29-05, 02:56 PM	#11
Zerogreat Electrician's Mate Join Date: Aug 2003 Location: Czech Republic, Prague, coordinates are sumthin like 50,10 North 14,25 East, not much accurate Posts: 132 Downloads: 0 Uploads: 0	No, you dont have to remember the frequencies, they are displayed in the NB station I will post a picture to explain what i mean Sonar Demon is for getting target's speed. You ahve to identify the target first, the look into USNI database (in DW) and see its TPK (turns per knot) value. Most submarines have TPK of 7. Then in the Demon station, select the appriopriate contact (it must have a tracker assigned in broadband) and you will see waterfall of lines... enter the TPK value and align cursor wtih tle LEFTMOST line, and you will get target's speed For TMA - its just a geometry If you know the targets speed enter it, and then try to place the "ruler" in such way that each tick on teh ruler is aligned with appropriate line ... you can also check the "dot stack" in top left corner. If all the little dots are on the line, your solution is probably correct. But if you dont know the target's speed there may be infinite solutions! In such case, change your course, and eventually then there will be only one (geometry, huh ).