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-   -   Britains new ships so noisy they can be detected 100 miles away (https://www.pprune.org/military-aviation/590823-britains-new-ships-so-noisy-they-can-detected-100-miles-away.html)

NutLoose 11th Feb 2017 11:32

Britains new ships so noisy they can be detected 100 miles away
 
Now don't get me wrong but isn't the reasoning behind the shape of these things in the first place to make them stealthy????


http://img-s-msn-com.akamaized.net/t...f&x=635&y=1149


British warships are 'so noisy' Russian submarines can hear them 100 miles away


and I quote



The MoD said that because the Type 45 was an air defence battleship, stealth was not a “premium requirement”.
now bar them being promoted to "battleships" and being spoken about in past tense, surely their purpose in life will be to protect the carrier fleets, so if you can detect and identify them, then the logical place the find them in wartime would be with the carriers.
Or am I and the MOD missing something here.

Jimlad1 11th Feb 2017 11:49

Its the usual round of daily mail hysteria promoted by long retired former officers with books to sell.

It caused guffaws among many of my former T45 mates when they read it.

ORAC 11th Feb 2017 12:06

And no doubt the attack sub crews as they sit at home on gardening leave waiting for something seaworthy to drive around in......

WE Branch Fanatic 11th Feb 2017 12:29

1. Type 45 is not designed for ASW.

2. How do other nations' warships and merchant vessels compare?

Heathrow Harry 11th Feb 2017 12:36

WEBF is correct - they're principally an anti-air assett - think of them as the final result of the Falklands War.

oxenos 11th Feb 2017 13:28

They are meant to be noisy. You pair a Type 45 AA frigate with a hush kitted AS frigate. While the boat's sonar operators are deafened by the 45, the AS tiptoes up behind them and sinks them. Simples.

A_Van 11th Feb 2017 15:56

It's 2017 we are living in, not 1940. Noise is "nice to have", but not the only factor to help detect and locate ships nowadays. Every serious military power now has a complete picture thru many hundreds miles away. So, let them scream and shout.

Pontius Navigator 11th Feb 2017 15:59

A Van, you might even have said 1960s for 1940 and 1970s for 2017.

A_Van 12th Feb 2017 05:41

PN,

As it's a chat, I exaggerate sometimes, yes. :-)

Nevertheless, in 70's USSR already had satellites and over-the-horizon radars. And though the technology improved in 40 years, physics-wise the principles remain the same.

oxenos 12th Feb 2017 07:56


HMS Dragon diverted 500 miles to reach the 13 Britons and one American after the mast and rudder had broken off their 60ft (18m) yacht on Thursday.
It would have been a great comfort to them, being able to hear her coming.

Aynayda Pizaqvick 12th Feb 2017 09:00

I would have thought the rather large emitter on top makes it pretty 'noisy' and easy to find (clearly it can be turned off, but then it is just a ship, not an AD ship)...

BernieC 12th Feb 2017 11:08

As this thread touches on naval matters some reader might be able to direct me to any site where a simple but obscure naval equipment question may be posed and, with luck, answered. I live in hope.

Frostchamber 12th Feb 2017 11:27

Bernie - a couple of possibilities you could try. If you google "warships1" this will take you to a series of discussion boards, including one specifically on the RN but also other specific topics. As ever with such fora they are populated by a mixture of people who know what they're talking about and those that don't, but you might get lucky. Another option is the Defence Talk maritime forum, which has some fairly knowledgeable folk. Both require registration.

BernieC 12th Feb 2017 14:55

Frostchamber - Most grateful; will try both. Am not averse to posting the question here if desired, but it is off-topic.

WE Branch Fanatic 12th Feb 2017 15:48

You could also try the Royal Navy forum on ARRSE.

Wetstart Dryrun 12th Feb 2017 16:26

Not too difficult to find.... I think the boats will be found in the next dock along from the nuclear submarine dock. If you can't find that, have a look for a pair of big boats with a large flat deck, probably in the dock next door. ...If you see any aeroplane thingies, then somebody else's fleet is in town.

trim it out 12th Feb 2017 17:22


Originally Posted by WE Branch Fanatic (Post 9673542)
You could also try the Royal Navy forum on ARRSE.

Failing that, the matelot equivalent could be a good shout.

https://www.navy-net.co.uk/community/

Ogre 12th Feb 2017 19:30

Of course this could just be mis-information designed to confuse the enemy, or a bit of bad journalism....

Hangarshuffle 12th Feb 2017 21:02

Hands up all those who have served in uniform if only even briefly on T45?
Er, me anyway.
Rumours were around years ago they were "noisy".
Saying that all ships are noisy, if not death traps exposed to the new generations of subs, mines, underwater stealth craft and smart weapons evolving for underwater application.
Next conflict will be an eye opener for the armchair admirals and an eye closer for the poor crews.

SASless 12th Feb 2017 21:56

I suppose "noise" becomes an issue at sea.....so the RN should be quite safe.

Even the new Scottish Navy could find you lot while you are in Port.

racedo 12th Feb 2017 22:20

Course they are noisy BAE needs refit ££££££ billion work to make them quieter.

Could someone please think of the BAE Directors bonuses.

Chugalug2 13th Feb 2017 17:15

"Captain's compliments, Chief, and could you manage to keep the noise down a little? There are U-boats popping up complaining about the noise!"

ricardian 13th Feb 2017 20:56


Originally Posted by Wetstart Dryrun (Post 9673573)
Not too difficult to find.... I think the boats will be found in the next dock along from the nuclear submarine dock. If you can't find that, have a look for a pair of big boats with a large flat deck, probably in the dock next door. ...If you see any aeroplane thingies, then somebody else's fleet is in town.

Don't worry, the Grey Funnel Line have a new recruitment initiative

https://scontent-lhr3-1.xx.fbcdn.net...a2&oe=5904AD04

Willard Whyte 14th Feb 2017 09:58


The 'we are here' factor can deter and keep an enemy beyond arms length
Even better would be 'we are somewhere but you don't know where'.

Fonsini 14th Feb 2017 21:41

I have never heard much talk about noise abatement in surface warships. UK hunter killers in the 1980s would routinely be able to detect US warships leaving port from the UK side of the Atlantic on their passive "waterfall" displays. They could even type identify them.

I think this is all a bit of a herring rouge.

ORAC 15th Feb 2017 06:22

Reports that the fault with the Trafalgar boats is terminal and the entire fleet may never sail again. Limiting the RN to the couple of Astute boats they have - and having to ask the USN to provide protection for the Vanguard boomers.

Royal Navy attack submarines - Over half docked after reactor crack | UK | News | Express.co.uk

Wetstart Dryrun 15th Feb 2017 10:00

How spookily prophetic seems the inscription on John Player fags - 'Navy Cut'

cattletruck 15th Feb 2017 10:44

What, no ear muffs and hi-viz vests when on duty! Wait 'till elf'n'safety hear about this - the'll turn what's left of the RN fleet into the loveboat in no time.

Heathrow Harry 15th Feb 2017 10:48

Quite a few "if's" in that article - the ciritical point will be if they detect similar "irrepairable" cracks in the other boats - even tho they are in maintenance it may be for something else altogether

The Trafalgars are due to decommision as follows:-

Torbay 2017
Trenchant 2019
Talent 2021
Triumph 2022

Thereare three Astutes in service -Astute, Ambush & Artful with deliveries

Audacious 2018
Anson 2020
Agamemnon 2022
"Ajax" 2024

They could juggle the decommisioning times on the remaining Trafalgars - or park them "in case of emergency" until enough Astutes are available.......

SASless 15th Feb 2017 11:52


the'll turn what's left of the RN fleet into the loveboat in no time.

the'll be a bit late in getting that done as I have heard it!:E

Fonsini 15th Feb 2017 12:21

That would be the first time I have ever seen a nuke boat reactor schematic - if that is truly accurate I'm genuinely stunned.

http://cdn.images.express.co.uk/img/...tor-825434.jpg

gr4techie 15th Feb 2017 13:49

If T45 is designed to be an AA picket then maybe its deliberately left "noisy" to be a deterrent. Makes a no fly zone?

Interestingly I once read that when King George VI (I think) was serving in the Royal Navy, he became so acclimatised to the ships noise that when he came back to land he couldn't sleep unless he had a tape recording of the ship playing at his bedside. As he could no longer sleep if it was too quiet!


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