Someone do the math for me....
 

okiedokie.

So I'm shooting at a 30 knot target with a 55kt torpedo with 27nm range (basically a Mk48)...

... what is the maximum launch range that will garantee my torp will not be outrun by the target? 12nm? 15nm? :hmm:

Anyone that can crutch the numbers for me? A formula that can be used to determine the launch range versus the torp speed and range would be great... :) :yep: :know:

edited
I've got error somewhere...rethinking :lol:
I never liked math actually¨ :doh:

Basically, if you shoot from point blank, you won't have to think about that - unless your torpedo is slower than the target. (40 knot fastest chinese ASW torp vs 40 knot seawolf... As it was without lwami.)

Not that you really want to...

About 12 miles. Good rule of thumb, if the target is greater than half your torpedoes range it can out run it if its a warship.

Re: Someone do the math for me....
 

A 55 kt torpedo covers 27 nm in about 30 minutes.
A 30 kt target can go 15 nm in the same amount of time.
Thus, if the target is more than 12 nm away at time of torpedo launch, then it can conceivably escape (12 nm = 27 nm - 15 nm).


"No escape range" = Torpedo max range - (Torpedo max range / Torpedo speed) * Target max speed

:know:

Hahha, took me half an hour :rotfl:

Max firing range = Torp range * ( 1 - ( Target speed / Torpedo speed)) :P

Sweet! Thanks Bill and Zero. :arrgh!:

*bookmarks thread*

ever heard the six minuet rule ?

spped of object x 200 and then u get the range in yard do that a couple of timss as i do and you get there a slower methord but not been far wrong yet.

. SIX MINUTE RULE

The “Six Minute Rule“ is a rule boat drivers live by. Take the speed of anything in knots, multiply it by 2...then add two zero‘s at the end of it. This is the distance in yards the object will travel in six minutes.
DISTANCE (yards) travelled in 6 minutes = SPEED(knots) × 200
For a weapon travelling at 55 knots, 55x2 is 110, and putting two zeros at the end of it, is 11,000 yards. That is how far the weapon will travel in six minutes. The range to hear a torpedo ram fire is on the order of 8-12 kyards. So if you fire and are heard counter fire will eat you in roughly six to eight minutes. Now then suppose you fire and evade at 5 knots, a nice, silent speed popular with the Sea Wolves. 5x2=10 and with the two zeros, is 1,000 yards. The active acquisition cone of an TORPEDO is 5,000 yards in diameter. In other words, you are dead against that weapon.
If you shoot, shoot and scoot. Fire on a lag LOS (LOS =3D Line Of Sight, explained in detail a bit later) and then expect counter fire in roughly seven minutes. You have to be at least 2,500 yards away (half an acquisition cone) before that time or you will be acquired. 2,500 yards, working it backwards is 12.5 knots (call it 13) for six minutes. That is the speed at right angles to the firing LOS you have to use to ensure you are not snapped up. It works and works very well. By the time they can TMA your speed and range, you are out of the cone.

From the THE BLUE BOOK OF SUBMARINE OPERATIONS, by Admiral R.Blue and Vice Admiral Homer