"as for those of you who want splash damage from torps to be less, consider that an
explosion underwater (even a direct torp hit) works on water compression (water is
incompressible) the water translates the explosive force into pressure on the hull of
the ship (this is why ss were designed to take tons of pressure, so that DCs and
torps would do less) causing damage and leaks/flooding depending on how close the
explosion was to the hull of the ship (the closer the more pressure because the
pressure was still concentrated) "
Water is an extremely poor conductor for blast forces (Shock waves). In a torpedo,
you're talking about a few hundred pounds of explosive..Generally equal to about
700 pounds of TNT. If you detonated that 100 yards away from a battleship at 4
meters below the surface, you would get lots of water falling down, a bit of a wave,
and zero damage to the ship.
Remember Operation Crossroads? Numerous major warships suffered almost ZERO
damage while sitting atop a 23 kiloton nuclear bomb in shallow water. The ships that
were damaged were damaged by the 94 foot tall wave that the explosion caused.
The actual blast caused relatively little damage to the fleet. In fact, the only major
loss attributed directly to the blast itself was the Arkansas, which was only some 170
yards from the blast...
And that was a 23 kiloton nuclear bomb.
What's a torpedo with a 700 pound warhead going to do?
For the blast to have any real effect, it'd have to be gigantic, and it'd have to be
close. The blast wave itself of a 23 kiloton nuclear bomb hardly effected ships 1,000
yards from the center of the blast..The 93 foot wave caused by the blast is what
caused most of the damage.
A dept charge was effective for the same reason a a modern torpedo exploding
directly under the hull of a ship was. It would cause momentary loss of buoyancy
(Since an effective depth charge would actually explode near and below the
submarine) and cause damage that way, as this gif demonstrates:
Splash damage makes no sense. You should not be rewarded for missing the target.
To compensate for this, remove duds.
Simple.