Quote:
Well yeah, but thats all you have to go on.
"Hes hit on the left."
"Ok well that narros it down to half of THE OCEAN!"
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If the submarine runs submerged, they are almost certainly within 6 km, which is far, far less than half of the Atlantic. I wish I could draw a picture to demonstrate what I'm saying... actually I think I'll do that.
There are two ways of solving this problem and neither is right or wrong. The first, and seemingly preferred by urseus, is to remain silent and hopefully undetected. My preferred method is to get as clear of the datum as my sub will allow. Both techniques have their merits.
For the purposes of demonstration, I used the following numbers:
At T1, torpedoes launched at 40kts, targetting a ship 4km away, giving us a T2 of just about 3 minutes.
Escorts average speed from T2A to T5 is 26kts, with sonar surely locating submarine at range of 800 meters, giving us a T5 of approximately seven minutes from T1, four minutes from T2A.
The GTFO surface manuever of T3A and T4A is conducted at average speed of 18 knots. This gives the escorts a theoretical search area of over 3800 meters for T3A and a area of 2200 meters for T4A. The Slip away submerged manuever of T3B and T4B is conducted at average speed of 6 knots. This gives a theoretical search area of 1300 meters for T3B and 740 meters for T4B. Obviously, T4B is the worst choice, as it's search area doesn't even place you outside the hypothetical sonar's area of sure detection.
Of course, I fudged a good many numbers and would love nothing more than to see someone punch holes in all my neat figures. Although hopefully this gets my point more or less across.