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Modern war ship question

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Hippycrowe
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Modern war ship question

#1 Post by Hippycrowe » Mon Aug 20, 2018 11:28 am

Why do modern warships have such light armor I realize modern ships are not battleships but even WW 2 destroyers could take multiple 500 pound bomb hits and Kamikaze hits. But when terrorists used 500 pounds of C4 on a modern US destroyer it almost sank it. And the US cruiser hit by a Exoset missile during the Iraq Iran war was heavily damaged some WW 2 cruisers took hits from Battleships and serviced without as much damage. Why don't we armor our ships better I realize modern missiles are very deadly but armor tech has also got better and tougher. Why don't we have an all or nothing armor for cruisers to protect them better.

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Re: Modern war ship question

#2 Post by echo1 » Mon Aug 20, 2018 3:33 pm

I can't say for sure, but I think the mentality is to not take missile hits, by using defensive stand off systems. That and the types of engagements modern ships are designed for aren't WWII style. PAX

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Re: Modern war ship question

#3 Post by Hippycrowe » Mon Aug 20, 2018 8:10 pm

The defense measures these ships have is impressive but you can only stop so many missiles if they are launched from several different directions so a ship must be able to take some damage sea hugging missile are very hard to see with radar.

Now torpedoes are a whole different story its easy to break the back of a ship when exploding a torpedo below it very few ships like the HMS Belfast can have it's back broken and survive.[ it hit an under water mine]

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Re: Modern war ship question

#4 Post by indy1919a4 » Mon Aug 20, 2018 9:18 pm

Just an interesting little discourse on this very subject

https://history.stackexchange.com/quest ... don-armour

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Re: Modern war ship question

#5 Post by Rapidrob » Mon Aug 20, 2018 9:31 pm

Todays warships are made for speed and economy. Their sensors and weapons are supposed to protect them. And,they are expendable.
All of the destroyers I served on had hulls 3/8" to 1/2 inch thick. Our life expediency in combat was 7 minutes.
The steel used in making todays ships is of a very high quality,is flexible and can take the seas mother nature can throw at it. The is no armor on todays ships as there was in the past.
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Re: Modern war ship question

#6 Post by ffuries » Mon Aug 20, 2018 10:48 pm

How many of our ships were targeted during Vietnam or any conflict since then? Plus with as potent as weapons are now, how much armor would be needed to protect a ship? At some point it becomes to heavy and slow.
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Re: Modern war ship question

#7 Post by Hippycrowe » Mon Aug 20, 2018 10:57 pm

Thing is you would never send a tank into battle with no armor they are like a land battleship they have to deal with armor piercing rockets mines aircraft everything a warship deals with only on a much smaller scale. The modern tank chabem armor could be used on warship designs not to make a ship invulnerable from missiles but to make them last long enough to get crews off. Chabem armor has laminated layers of metal and suramic to stop explosions and suramic it resists high heat so fire would take more time to melt through a ship.
It seems to me in modern naval war you had better keep your very expensive navy in port until you shoot down all the air craft destroy all enemy submarines and destroy all enemy missile launchers.
Oh ya by the way most of the heavy warships survived the nuclear test above the water the heavy armor protected them now the radiation would have killed the crews.

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Re: Modern war ship question

#8 Post by DaleH » Tue Aug 21, 2018 9:34 am

That would be CHOBHAM armor, see: https://en.m.wikipedia.org/wiki/Chobham_armour

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Re: Modern war ship question

#9 Post by Hippycrowe » Tue Aug 21, 2018 10:46 am

Ah correct spelling
The holy grail of ship armor would be a layered armor that has its atoms arranged in way that they are miss aligned so it would be weakest before an impact and as pressure was applied the atoms would line up and it would be stronger as an explosion happened. In theory it would be layered with hard and soft armor to defeat explosive power and penetrating power of a projectiles. From what I have read it is possible to make this type metal,there is also a type of metal in theory that would become much stronger when an electric field was passed through it turning it from flexible to ultra tough. It is also thought this type of armored would be used in body armor and be reactive to pressure and force. The last armor for a ship would be a plasma type shielding,by manipulating an energy field you could either deflect an incoming missile or deflect it. This tech is not that far away we make plasma all the time and work with making it into a shield is very possible. Plasma shield could also defeat radar making a ship much harder to target.

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Re: Modern war ship question

#10 Post by Rapidrob » Tue Aug 21, 2018 9:27 pm

Aircraft are not the problem,their stand-off weapons are. A jet is very easy to shoot down, multiple sea skimming missiles launched at one time is a challenge to take out.
That being said, the aircraft/ vessel of some sort has to get close enough to launch it's weapons.
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Re: Modern war ship question

#11 Post by Hippycrowe » Wed Aug 22, 2018 12:40 am

The navy says the layered defense is can shoot down sea skimming missiles but hypersonic missiles can't be shot down until laser weapons are fitted to ships. No matter how fast a hypersonic missile is a laser works at the speed of light.

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Re: Modern war ship question

#12 Post by Rapidrob » Wed Aug 22, 2018 8:05 pm

The Navy has had beam weapons since the 70's. It has only been in the last few decades they have been talking about them.
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