How do you make a FAST torpedo solution?

XenonSurf · 01-02-18, 09:17 PM

Hi,
there are a lot of tutorials and videos about how to make a long-lasting target follow-up like the 4-bearing with the hydrophone, visual collection of speed and distance with the help of the Stadimeter etc.
Once you have completed your data collection you indeed have the perfect torpedo solution afterwards. Problem is: all these methods take time, a precise collection will last at least 15-20 minutes, although I'm sure experts will do it much faster.

But what do you do in the following scenario:
Your sonar reports a target closing that must be as close as 1500m.
It's dark night, assume you see pretty nothing, even at close range, maybe you will see some shape of a ship, but not enough to use Stadimeter. Maybe you see just enough to measure roughly its speed between 2 hastly taken bearings.
OR: It's a sunny day, you see everything but the target goes at really high speed and you are NOW in almost perfect position. But if you don't shoot now, say good bye to the target. (You may ask how I got in this situation and not doing my homework before, but this can happen e.g. after a target has detected you, changed his course and speed up to 20+ knots, yet presenting to you a good firing solution.)
Essentially, in such a case, you DON'T have the time to fool around by plotting an elaborated heading on the map. You must act NOW or the target will be gone.

So in scenarios like this, how do you feed the TDC for a reasonable torpedo solution for a spread of 2-3 torpedos where 1 or more would reasonably hit? Is there a way to make a good guessing work?

I am already used to bypass most calculations once I know the speed and course of a target: All I do then is: I feed the perpendicular distance to the heading in the TDC (Bearing), I chose a AOB of 90 and set the gyro angle at zero (my sub's heading pointing to the impact point). Then, the periscope bearing will tell me when to shoot the torpedo (I set my sonar guy to report the bearings, once the ship passes the set bearing: I start to fire). In my fast scenario, the problem would be to get the course and speed FAST. Problem is getting the speed. Once I get it I'm ok because I have only 2 of the 4 TDC values to gather to fire at 90, so it should simplify things.

What would you do, what is your solution to this problem?
Thanks for your insights, and if you know some tutorials that cover such FAST solution findings, I appreciate a lot!

Cheers,

01-02-18, 09:17 PM	#1
XenonSurf Sea Lord Join Date: Apr 2008 Location: Germany, Italy Posts: 1,703 Downloads: 107 Uploads: 4	How do you make a FAST torpedo solution? Hi, there are a lot of tutorials and videos about how to make a long-lasting target follow-up like the 4-bearing with the hydrophone, visual collection of speed and distance with the help of the Stadimeter etc. Once you have completed your data collection you indeed have the perfect torpedo solution afterwards. Problem is: all these methods take time, a precise collection will last at least 15-20 minutes, although I'm sure experts will do it much faster. But what do you do in the following scenario: Your sonar reports a target closing that must be as close as 1500m. It's dark night, assume you see pretty nothing, even at close range, maybe you will see some shape of a ship, but not enough to use Stadimeter. Maybe you see just enough to measure roughly its speed between 2 hastly taken bearings. OR: It's a sunny day, you see everything but the target goes at really high speed and you are NOW in almost perfect position. But if you don't shoot now, say good bye to the target. (You may ask how I got in this situation and not doing my homework before, but this can happen e.g. after a target has detected you, changed his course and speed up to 20+ knots, yet presenting to you a good firing solution.) Essentially, in such a case, you DON'T have the time to fool around by plotting an elaborated heading on the map. You must act NOW or the target will be gone. So in scenarios like this, how do you feed the TDC for a reasonable torpedo solution for a spread of 2-3 torpedos where 1 or more would reasonably hit? Is there a way to make a good guessing work? I am already used to bypass most calculations once I know the speed and course of a target: All I do then is: I feed the perpendicular distance to the heading in the TDC (Bearing), I chose a AOB of 90 and set the gyro angle at zero (my sub's heading pointing to the impact point). Then, the periscope bearing will tell me when to shoot the torpedo (I set my sonar guy to report the bearings, once the ship passes the set bearing: I start to fire). In my fast scenario, the problem would be to get the course and speed FAST. Problem is getting the speed. Once I get it I'm ok because I have only 2 of the 4 TDC values to gather to fire at 90, so it should simplify things. What would you do, what is your solution to this problem? Thanks for your insights, and if you know some tutorials that cover such FAST solution findings, I appreciate a lot! Cheers, Last edited by XenonSurf; 01-02-18 at 09:57 PM.