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Type 45 Destroyer (Daring Class) (RN) [News Only]

Contains threads on Royal Navy equipment of the past, present and future.
Ron5
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby Ron5 » 23 Nov 2017, 19:15

Prove your claims or shut up.

No pride in your own country or your countries companies is pretty typical these days. Pathetic.

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby Ron5 » 23 Nov 2017, 19:21

By the way, it has been reported the problem is with the ship's propellers. I wonder who made those? Could it be the same company that made the defective GT's?

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SKB
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby SKB » 23 Nov 2017, 19:48

Northrup Grumman Marine (originally Westinghouse) is the company which supplies the troublesome intercooler-recuperator used in the Rolls Royce WR-21 GT's used in the T45's.

The Northrup Grumman Marine intercooler-recuperator recovers heat from the Rolls Royce WR-21 GT turbine exhaust and recycles it into the engine, making it more fuel-efficient and reducing the ship’s thermal signature.

Unfortunately the intercooler unit has a major design flaw and causes the GT's to fail occasionally. When this happens, the electrical load on the two Wartsila 2MW diesel generators can become too great and they ‘trip out’, leaving the ship with no source of power or propulsion.

Replacement of the WR-21 GTs is not a practical option. Instead an additional third diesel generator will provide long-term redundancy and assurance that electrical supplies can be maintained in the event of GT failure. Unfortunately, each Type 45 destroyer will have to be dry-docked, large openings cut in the hull and one additional diesel generator slid into place.

Northrup Grumman Marine is a US company.

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby seaspear » 23 Nov 2017, 20:42

There have been claims of this design flaw raised previously ,but not the specifics , certainly the government of the time knew of the risk in the new technology but chose to ignore , did the recent parliamentary enquiry determine if Northrup Grumman was to be held accountable?

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby jimthelad » 23 Nov 2017, 22:58

Ron I think you will find pride in our country in the context of many of the members of this forum extends to service at the sharp end (more than I expect you have done). Defending the corporate largesse of the multinational behemoth is best left up to ingratiating proctoscopists such as yourself. Speaking in my new profession I would suggest the brand of Kruuse veterinary obstectric lubricant would be the best choice to go fist yourself.

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby RetroSicotte » 24 Nov 2017, 00:04

All right everyone, that's enough, from all parties involved.

Further posts on this away from Type 45 news unrelated to this targeted arguement will be deleted if they are posted after my post here.

Take it to PM with one another if you want.

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby shark bait » 24 Nov 2017, 08:08

This really highlights the RN's availability crisis.

We simply couldn't support the QE in conflict with a fleet in this state, the system needs to be able to tolerate some stress like mechanical failure, but it's stressed far too thin to allow that.
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby R686 » 24 Nov 2017, 21:42

shark bait wrote:This really highlights the RN's availability crisis.

We simply couldn't support the QE in conflict with a fleet in this state, the system needs to be able to tolerate some stress like mechanical failure, but it's stressed far too thin to allow that.



To be far if its a grounding of an entire class it doesn't really matter if you have six or fifty ships of that class, but does illustrate for the need for ships able to cover across the maritime spectrum if only to a limited degree.

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby Opinion3 » 24 Nov 2017, 23:45

@r686

Does this not better illustrate the need not to put all your eggs in one basket. Commonality is often used as a great benefit, and indeed there are great benefits, but most platforms have weaknesses and often these are only found out under the stresses of design limits and war. Having a whole class of destroyers, fleet of helicopters or army rifle put to one side for investigations/ repairs / etc. might be considered dangerous.

In the case of the Daring Class it also illustrates the concept of moving from physical testing of the genset to modelling was done too fast. There should have been a parallel process or no move away from the physical testing.

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby Ron5 » 25 Nov 2017, 03:23

The reported problems with Diamond are with the Rolls Royce provided propellers. Rolls Royce was also responsible for supplying the WR21's.

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby bobp » 26 Nov 2017, 15:25

According to Janes the problem may be in the Propeller Shaft itself ........
http://www.janes.com/article/75935/uk-t ... ller-fault

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby Ron5 » 26 Nov 2017, 17:16

Not 100% sure but I think the shafts are also Rolls as on the new carriers.

By the way, not the first time for Type 45 shaft problems.

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby SKB » 01 Dec 2017, 18:23



HMS Diamond is back... all 6 T45's now in Portsmouth.

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby SKB » 26 Feb 2018, 12:58


HMS Dragon (D35) arrived in Devonport on Tuesday 20th February 2018.



HMS Diamond (D34) leaving Portsmouth, Thursday 22nd February 2018.

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby SKB » 28 Feb 2018, 17:42


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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby SKB » 01 Mar 2018, 12:53


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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby SKB » 06 Mar 2018, 19:05



(Videos: Jonny Davies)

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby SKB » 11 Mar 2018, 17:20


dmereifield
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby dmereifield » 21 Mar 2018, 16:06

https://www.baesystems.com/en/article/b ... generation

"BAE Systems, Cammell Laird and BMT team-up to deliver additional Type 45 power generation"

Work set to begin "immediately"

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RichardIC
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby RichardIC » 21 Mar 2018, 16:09



Good news for the RN and excellent news for Merseyside.

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Cooper
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby Cooper » 21 Mar 2018, 17:32

So, it will only be about 15yrs into their service life before they all work as advertised.. :roll:

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby Poiuytrewq » 21 Mar 2018, 17:46

It would be good if they could drop in some Mk41 VLS cells while they are in drydock :D

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby 2HeadsBetter » 21 Mar 2018, 18:04

"Improvement Project." So not repairs then. Anyone else noticed how industrial sites are now called employment parks. Everything is spin nowadays.

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby SKB » 21 Mar 2018, 18:41

"selected"
:lol:

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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Postby matt00773 » 21 Mar 2018, 20:21

dmereifield wrote:https://www.baesystems.com/en/article/bae-systems--cammell-laird-and-bmt-team-up-to-deliver-additional-type-45-power-generation

"BAE Systems, Cammell Laird and BMT team-up to deliver additional Type 45 power generation"

Work set to begin "immediately"


The following quote from the story says it all really.

"The BAE Systems-led team competed in and won both lots"

Despite that, this is great news and the light is now at the end of the tunnel. The IEP system in the Type 45 is the state of the art and future generations of power systems based on this technology will keep UK at the forefront of ship design.


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