Royal New Zealand Navy Discussions and Updates

ngatimozart

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40 deg south

Well-Known Member
None of the lefties out protesting against that ship. Bunch of hypocrites. :mad Probably no shore leave for the sailors on board either, so they miss out on the fleshpots of Auckland :haha There wasn't when their destroyers were here last time.
Pleased that the NZ Herald article did indicate there is a degree of inconsistency from those opposed to the visit of warships.

I've always quietly enjoyed pointing out to my anti-nuclear friends that ships from three nuclear-capable navies (China, France, RN) call here routinely without comment, yet the hint of a US vessel approaching sends a small and aging segment of the population into paroxysms of rage.
 

40 deg south

Well-Known Member
https://navynews.co.uk/archive/news/item/15305

The RN's first Type 23 is having Sea Ceptor fitted. Sadly no photos of the launchers. Pleased that NZ isn't going to supply the lead vessel for this process, as it is always possible that the real world will throw up problems the engineers never anticipated.

I wonder if someone from LockMart Canada is there taking notes?

Be warned that the article is apparently written by a graduate of the P.T. Barnum School of Hyperbole, and was published without any proof-reading or editing. Very poor for an official publication.
 

40 deg south

Well-Known Member
https://www.facebook.com/irishnaval...764433239795/1105127556236806/?type=3&theater

Unrelated to NZ, but the facebook page of the Irish Naval Service provides an interesting look at another small navy, operating OPVs based on the same hull design at Otago and Wellington.

It appears the decision to have a vessel continuously in the Med on migrant rescue duties is putting pressure on the service, but attracting a lot of public support.

The short time-lapse video posted on 21 September shows some very tidy handling as they exit home base at Haulbowline in Cork Harbour.
 

40 deg south

Well-Known Member
Freire Shipyard, BMT team for New Zealand LOSC bid | IHS Jane's 360

Some NZ-related news. BMT (whose Aegir-class tanker design built by DSME lost out to the Hyundai-Rolls Royce bid for the Endeavour replacement) has teamed with niche Spanish yard Freire to bid for the LOSC capability.

110 m. ROV Survey/Offshore Light Construction Vessel - Freire Shipyard

This vessel on their website bears a striking resemblance to the 'indicative illustration' in the current Navy Today magazine. I have no idea how Spanish costs would compare with Asian yards, but it will be good for NZ if there are a range of credible proposals to chose between.
 

40 deg south

Well-Known Member
What I find interesting is given that a core function of the LOSC is that it will support diving operations, there is no mention of a decompression chamber listed amongst the fairly detailed list of 'features' in the Navy Today article. One assumes a new one would be preferred over trying to save a few $$$ by re-using that from Manawanui!?!
https://www.gets.govt.nz/NZDF/ExternalTenderDetails.htm?id=7784401

For what its worth, NZDF issued a tender for a containerised decompression chamber last year. Given the LOSC has space for four 20 ft containers (from memory), is this how the service will be provided?

It would certainly give the flexibility to deploy divers off any other container-capable ship.
 

Gibbo

Well-Known Member
https://www.gets.govt.nz/NZDF/ExternalTenderDetails.htm?id=7784401

For what its worth, NZDF issued a tender for a containerised decompression chamber last year. Given the LOSC has space for four 20 ft containers (from memory), is this how the service will be provided?

It would certainly give the flexibility to deploy divers off any other container-capable ship.
Ah yes that certainly makes sense - and yes a containerised version that can be swapped between vessels is clever thinking.

Wonder what a 'containerised two compartment diver recompression chamber' is exactly? ie: how many divers can it accomodate & how does it compare in size to that currently on Manawanui!?!

I see the tender was awarded to Draeger Safety Pacific PTY LTD - their website doesn't give any clues.
 
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chis73

Active Member
Wonder what a 'containerised two compartment diver recompression chamber' is exactly? ie: how many divers can it accomodate & how does it compare in size to that currently on Manawanui!?!
The Canadian MCDV programme had two containerised two-compartment recompression chambers built (shared between 12 ships, in 2 fleets), by a company called Fullerton & Sherwood (more correctly Fullerton Sherwood Engineering Ltd I think). I believe they had a 6-person capacity. This was early in the MCDV's RCN service, probably mid-1990s.

It is difficult even to find pictures of these chambers (I think I've seen just one online), and from the paucity of evidence concerning diving operations and MCDVs, they appear to be little used. The same could be said for many of the mission containers, barring the accommodation ones. The OPV role the MCDVs undertake (in lieu of something better to do it), and the manning by Reservists rather than Regulars are probably significant factors in why this is so.
 
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40 deg south

Well-Known Member
Ah yes that certainly makes sense - and yes a containerised version that can be swapped between vessels is clever thinking.

Wonder what a 'containerised two compartment diver recompression chamber' is exactly? ie: how many divers can it accomodate & how does it compare in size to that currently on Manawanui!?!

I see the tender was awarded to Draeger Safety Pacific PTY LTD - their website doesn't give any clues.
A quick hunt on google shows that company is an outpost of a German family-owned business that has been making diving gear for over a century. Presumably they know what they are doing by now!

Dräger. Technology for Life®

As you say, images of their decompression chambers are hard to find. I wonder of the same company will get the nod for supplying diving equipment aboard the new LOSC? - that is certainly within their core business area.
 

40 deg south

Well-Known Member
https://navynews.co.uk/archive/news/item/15305

The RN's first Type 23 is having Sea Ceptor fitted. Sadly no photos of the launchers. Pleased that NZ isn't going to supply the lead vessel for this process, as it is always possible that the real world will throw up problems the engineers never anticipated.

I wonder if someone from LockMart Canada is there taking notes?

Be warned that the article is apparently written by a graduate of the P.T. Barnum School of Hyperbole, and was published without any proof-reading or editing. Very poor for an official publication.
https://www.shephardmedia.com/news/mil-log/hms-westminster-undergoes-refit/

Well, that was quick work.

HMS Westminster upgrade apparently now complete, and ready to begin sea trials.
 

40 deg south

Well-Known Member
http://navy.mil.nz/downloads/pdf/navy-today/nt204.pdf

Latest Navy Today out.

Of interest to some readers will be the creation of a new position - Chief Naval Engineer, as part of a drive to rebuild the Navy's in-house engineering capability.

They also advise 10-12 vessels expected for the fleet review in November. We can tick off one as being from the US. I'd guess 2 from australia, one for RN, one from Singapore.

Any other suggestions? China, Japan, Korea and various SE Asian nations would all have to be contenders.
 

Novascotiaboy

Active Member
Just read the new Navy Today and read the article about the SH2G and its deployment aboard the OPV signifying the types certification aboard. A part of the article discusses the improved abilities of sensors and weapons notably the Penguin. I know it's been said that the OPV's lack a magazine but could one be retrofitted to accommodate Penguin and or torpedoes? Or is there no room or weight capacity to accommodate such an addition. I am unfamiliar with the specifications for a naval magazine for helo based weapons so anyone with a knowledge I would be interested in hearing your opinion? IMHO even the ability to store two penguins and two torpedoes wouldn't take up that much space. These wouldn't be required all of the time so even a 20 foot container could be retrofitted as a magazine and the deck crane lift the weapons to the flight deck for installation. In those instances where increasing tensions may see the need to have at least they would be available.
 

chis73

Active Member
http://navy.mil.nz/downloads/pdf/navy-today/nt204.pdf

Latest Navy Today out.

Of interest to some readers will be the creation of a new position - Chief Naval Engineer, as part of a drive to rebuild the Navy's in-house engineering capability.
Glad to see such a position established. I've thought for a while that the RNZN top brass has tended to be mostly Seaman branch officers (ie ship-drivers) and that the engineers never seem to make it to the top. Naval engineering is one of the most technically difficult disciplines there is; perhaps only submarines & spacecraft are more challenging. My only concern would be - is the small RNZN engineering branch big enough to run it's own operation (without calling in help from civilian contractors or secondments from a larger force)? Does it have enough expertise? With so many ship classes (in ones and twos), the RNZN needs all the engineering help it can get. I've recently been reading D.K Brown's excellent history of the Royal Corps of Naval Constructors (A Century of Naval Construction, 1983) - not even the RN in its hey-day tried to do this in-house - the constructors were civilians, as were the scientists who did much of the development. .


Interesting story in the Navy Today on the gas turbine repair. Curious that they lifted it out in sections. My understanding is probably dated, but I thought that the use of marine gas turbines (especially those modified from aircraft engines like the LM2500 in the ANZAC) was designed around having them routinely removed and serviced ashore (to reduce crew requirements). So I found it odd that they disassembled it inside the ship and repaired it in place. With some of the more modern gas turbines (such as the complex inter-cooled one in the Type 45 destroyer) I imagine this would be more difficult (almost back to the dedicated naval gas turbines that powered earlier generations such as the Type 81 frigate & the County class destroyers).

Glad also to see the SH-2G(I) breaking it's duck on OPV operations. Finally!
 

Volkodav

The Bunker Group
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Interesting story in the Navy Today on the gas turbine repair. Curious that they lifted it out in sections. My understanding is probably dated, but I thought that the use of marine gas turbines (especially those modified from aircraft engines like the LM2500 in the ANZAC) was designed around having them routinely removed and serviced ashore (to reduce crew requirements). So I found it odd that they disassembled it inside the ship and repaired it in place. With some of the more modern gas turbines (such as the complex inter-cooled one in the Type 45 destroyer) I imagine this would be more difficult (almost back to the dedicated naval gas turbines that powered earlier generations such as the Type 81 frigate & the County class destroyers).

Glad also to see the SH-2G(I) breaking it's duck on OPV operations. Finally!
Depends on the design of the ship, FFG-7, Arleigh Burkes, F-100 etc. have removal routes for their GTs using a combination of fixed and removable rails up through the funnels. The ANZACs however require semi disassembly of the GT and I believe the removal / cutting of soft patches to remove their GT. My understanding was that the thinking was that the GT was only for boost so major work or replacement wouldn't be required that often, as per usual this didn't work out to be the case.
 

40 deg south

Well-Known Member
Not exactly, she's been in refit since October 2014.
Fair point. I was just a bit amused by one release saying various bits of equipment were being fitted, and a second release a few days later announcing that installation was complete.

HMS Westminster hosts Chief of Navy RNZN | Royal Navy

While looking around, I came across this release from back in June marking a visit to HMS Westminster by NZ's Chief of Navy. I'm encouraged that NZ (and hopefully it's Canadian contractors) are keeping a close eye on the initial Sea Ceptor installation.
 

40 deg south

Well-Known Member
Depends on the design of the ship, FFG-7, Arleigh Burkes, F-100 etc. have removal routes for their GTs using a combination of fixed and removable rails up through the funnels. The ANZACs however require semi disassembly of the GT and I believe the removal / cutting of soft patches to remove their GT. My understanding was that the thinking was that the GT was only for boost so major work or replacement wouldn't be required that often, as per usual this didn't work out to be the case.
Volk
How often have the ANZAC GT's actually required disassembly/removal? From my reading of the piece in Navy Today, it came across as a rare/unusual event.

If that's the case, perhaps having them 'built in' hasn't been a major inconvenience.
 
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