old forts used earthworks, can ships use water walls for defence

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mainsworthy
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old forts used earthworks, can ships use water walls for defence

Post by mainsworthy »

old forts used earthworks, can ships use water walls for defence? if a ship could lower its self deeper or put up water barriers , I was just wondering thats all
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ernieschwitz
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Re: old forts used earthworks, can ships use water walls for defence

Post by ernieschwitz »

Well the idea is interesting. Water does have an effect on projectiles, slowing them down and changing their trajectory.
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Re: old forts used earthworks, can ships use water walls for defence

Post by Curtis Lemay »

Submarines are entirely under water yet subject to torpedos and depth charges.
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Re: old forts used earthworks, can ships use water walls for defence

Post by RangerJoe »

Water is hard, there would be pressure waves that can do more damage than the actual explosion if there is no water. Plus by going lower into the water, that makes the ship more likely to sink beneath the waves without coming back up when it is desired.
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Re: old forts used earthworks, can ships use water walls for defence

Post by Platoonist »

It is much better for bombs or shells to explode near a target and under water. Damage is primarily from hydraulic effect through the surrounding fluid. Fluids are in-compressible. Therefore, more energy is delivered to the target than an explosion in air, which is very compressible and dissipates much more energy.

It is the same reason depth charges are so effective. A near miss is almost as deadly as a direct hit. Plus, the powerful shock waves from those near misses do nasty things to vulnerable ship systems like rudders, shafts, seals and hydraulics. Many a submarine was tracked to its eventual destruction by the knocking sound coming from a bent propeller shaft or blade.
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Re: old forts used earthworks, can ships use water walls for defence

Post by czert2 »

mainsworthy wrote: Tue May 14, 2024 11:34 pm old forts used earthworks, can ships use water walls for defence? if a ship could lower its self deeper or put up water barriers , I was just wondering thats all
you mean like something when ship is sinking and then sunk ? :twisted:
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Re: old forts used earthworks, can ships use water walls for defence

Post by Matt R »

Refer to USS Monitor.
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