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by donald_of_tokyo
21 Sep 2019, 10:23
Forum: Royal Navy
Topic: River Class (OPV) (RN)
Replies: 2954
Views: 182245
Location: Japan

Re: River Class (OPV) (RN)

HMS Clyde coming back, before HMS Forth goes south. At where they will cross?

by donald_of_tokyo
20 Sep 2019, 13:37
Forum: Royal Navy
Topic: Type 31 General Purpose Frigate [News Only]
Replies: 6150
Views: 349539
Location: Japan

Re: Type 31 General Purpose Frigate [News Only]

But, all and every document on Artisan 3D carefully avoids calling it an AESA. Even BAE brochure do not https://www.baesystems.com/en/download-en/20170111151157/1434591568826.pdf It is clear the system is based on Sampson, AESA. So, it uses the solid-state antenna modules. Its waveform pattern is al...
by donald_of_tokyo
20 Sep 2019, 13:21
Forum: Royal Navy
Topic: River Class (OPV) (RN)
Replies: 2954
Views: 182245
Location: Japan

Re: River Class (OPV) (RN)

Not sure. The sea going days of every escorts are also significantly reduced by 40%. It means, even for the same number of hulls, 40% more sailors are sitting in port, waiting to go to sea (but assigned to a ship as a crew). Anyway, 1600 shortage is not small. Assuming all of them is NOT related to ...
by donald_of_tokyo
20 Sep 2019, 13:15
Forum: Royal Navy
Topic: Royal Navy Gunnery Discussion
Replies: 110
Views: 5671
Location: Japan

Re: Royal Navy Gunnery Discussion

Clearly the RN do believe NGFS is important (ofcourse they would if you actually look at how often it has been used even in recent years) as they have invested in an expensive gun an ammo system that's only use is pretty much NGFS in the 5 inch, but it seems that is going on the wrong ship as the t...
by donald_of_tokyo
20 Sep 2019, 13:07
Forum: Royal Navy
Topic: Royal Navy Gunnery Discussion
Replies: 110
Views: 5671
Location: Japan

Re: Royal Navy Gunnery Discussion

I do not think NGFS is a high priority in T31 frigate. If NGFS was required in the near future, which RN vessels would provide it? Most likely the T23 GP's. The T23 GP's were supposed to be being replaced by T26 GP's with Mk45 guns, and would have most likely provided the bulk of any NGFS to allow ...
by donald_of_tokyo
20 Sep 2019, 11:35
Forum: Royal Navy
Topic: River Class (OPV) (RN)
Replies: 2954
Views: 182245
Location: Japan

Re: River Class (OPV) (RN)

Well, Lancaster is back at sea and Dauntless is now scheduled for refit. The T23s are all going in for refit one after tha other because they are so old (due to the fannying about with the T26 design) as are the T45s (because of the fannying about with untried and unsuitable engine technology). The...
by donald_of_tokyo
20 Sep 2019, 01:31
Forum: Royal Navy
Topic: Royal Navy Gunnery Discussion
Replies: 110
Views: 5671
Location: Japan

Re: Royal Navy Gunnery Discussion

As much as I have pushed the 76mm and 2 x 40mm combo I would be happy with a 57mm and 2 x 40mm as said there is still room for 2 x Phalanx one each side of the rear 40mm mount . I also put forward last year the idea of 3 x 57mm and if A-140 had this plus 2 x Phalanx and 24 CAMM they would be a very...
by donald_of_tokyo
19 Sep 2019, 16:58
Forum: Royal Navy
Topic: Royal Navy Gunnery Discussion
Replies: 110
Views: 5671
Location: Japan

Re: Royal Navy Gunnery Discussion

On NGFS, someones says it shall be done with the less capable asset, because of risk. --> T31. Other says, it must be done with assets heavily armed, because of risk --> T26 or T45. Which is correct? I do not know. But I assume, both is correct. Depends on the threat-level of the enemy. 1: when you ...
by donald_of_tokyo
19 Sep 2019, 16:02
Forum: Royal Navy
Topic: Royal Navy Gunnery Discussion
Replies: 110
Views: 5671
Location: Japan

Re: Royal Navy Gunnery Discussion

Thanks ArmChairCivvy-san, Vs 76mm, I am talking here. ...howabout the cancelling of appr. half of the order volume, bcz the 30 mm from another supplier could do more damage (ref: the trials... go and find them) I know it. But, 76mm did not come in, anyway. Also, even with the report, USN is still us...
by donald_of_tokyo
19 Sep 2019, 13:35
Forum: Royal Navy
Topic: Royal Navy Gunnery Discussion
Replies: 110
Views: 5671
Location: Japan

Re: Royal Navy Gunnery Discussion

I understand 57mm is much better than 76mm against fast-boat swarm and AAW, "now" and in "future". Even though there were plenty of 76mm guns, USN moved to 57mm (now). Also, they are very heavily investing on it (future). The only merit 76mm has is on NGFS, while anyway only basi...
by donald_of_tokyo
18 Sep 2019, 15:45
Forum: Royal Navy
Topic: River Class (OPV) (RN)
Replies: 2954
Views: 182245
Location: Japan

Re: River Class (OPV) (RN)

Every available image of cut-out of River B2 has a "magazine" section right below the bow 30 mm gun (*1). Deck penetration may not be an issue, I guess. *1: https://www.savetheroyalnavy.org/up-close-with-the-royal-navys-newest-ship-hms-medway/ Also the River B2 movie, originally provided b...
by donald_of_tokyo
17 Sep 2019, 16:07
Forum: Royal Navy
Topic: River Class (OPV) (RN)
Replies: 2954
Views: 182245
Location: Japan

Re: River Class (OPV) (RN)

Practical point of view, I do not want to spend many money, and what is more, man-power, on up-arming River B2. If there be such resource, we shall invest it on T23/T26/T45/T31 (such as interim AShM). But, we all know there are two types of budget, and one of them is "one-shot money". Good...
by donald_of_tokyo
17 Sep 2019, 15:18
Forum: Royal Navy
Topic: River Class (OPV) (RN)
Replies: 2954
Views: 182245
Location: Japan

Re: River Class (OPV) (RN)

As RN T31 program director said in the interview at DSEI 2019, "capability is relative issue", not absolute . So, let's start from the lower end: - A River B2 as is, is best used as EEZ patrol, but cannot survive a few fast-boat attack, but - a River B2 "slightly up-armed" with o...
by donald_of_tokyo
17 Sep 2019, 11:12
Forum: Royal Navy
Topic: Royal Navy Gunnery Discussion
Replies: 110
Views: 5671
Location: Japan

Re: 76mm Oto Melara

I share the concern of 40 mm 3P guns. It is designed to be a CIWS, but how much it is "automated" in not clear. For example, AEGIS system has a "fully automatic reaction mode", which I think is virtually the same to Phalanx. Does the 40 mm (and 57 mm) gun systems has similar mode...
by donald_of_tokyo
17 Sep 2019, 11:02
Forum: Royal Navy
Topic: Type 31 General Purpose Frigate [News Only]
Replies: 6150
Views: 349539
Location: Japan

Re: Type 31 General Purpose Frigate [News Only]

So importing foreign skills so we can learn (whilst getting a bargain at the same time), seems an entirely sensible strategy. All that will accomplish is to erode British industry further. Moving from home development to just assembling things invented by others. Not sure. For example, South Korean...
by donald_of_tokyo
16 Sep 2019, 14:21
Forum: Royal Navy
Topic: Royal Navy Gunnery Discussion
Replies: 110
Views: 5671
Location: Japan

Re: 76mm Oto Melara

On the T31 guns: As addition of two new types of guns (57 mm and 40 mm) looks like a bit in-efficient, I have some proposal. How about carrying two 57 mm, in double end . one at the bow, another on top of the hangar. Arrowhead 140 has an additional "top-space" at the back end of the Merlin...
by donald_of_tokyo
16 Sep 2019, 11:42
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10472
Views: 549382
Location: Japan

Re: Current & Future Escorts - General Discussion

From T31 NEWS thread. ...Chief Executive, Babcock Marine, John Howie was talking about this, in the interview to Defense & Aerospace Report. see "https://www.youtube.com/watch?v=f7UB0YuTNQA" 1: He admits Arrowhead 140 hull is much bigger than that the requirement needed. (03:00) Larger...
by donald_of_tokyo
16 Sep 2019, 11:23
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10472
Views: 549382
Location: Japan

Re: Current & Future Escorts - General Discussion

Assuming 1 year drumbeat of T31 delivery (*1) from 2024, and 1.5 year drumbeat of T26 delivery from 2025. *1: From man-power point of view, deliver = hand over is important, not commissioning. (out = decommission, in = hand over to RN, total = frigate hull number) ==================================...
by donald_of_tokyo
16 Sep 2019, 10:12
Forum: Royal Navy
Topic: Type 31 General Purpose Frigate [News Only]
Replies: 6150
Views: 349539
Location: Japan

Re: Type 31 General Purpose Frigate [News Only]

Their's nothing to export. Foreign hull, engines, CMS, guns and radar. It's no wonder the 'e' has now been dropped! Chief Executive, Babcock Marine, John Howie was talking about this, in the interview to Defense & Aerospace Report. see "https://www.youtube.com/watch?v=f7UB0YuTNQA" 1: ...
by donald_of_tokyo
16 Sep 2019, 01:48
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10472
Views: 549382
Location: Japan

Re: Current & Future Escorts - General Discussion

Nice compilation
from twitter @mpwarwick, see "https://twitter.com/mpwarwick/status/1172879310929190913"
Image
by donald_of_tokyo
15 Sep 2019, 15:14
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10472
Views: 549382
Location: Japan

Re: Current & Future Escorts - General Discussion

Firstly, I'm amazed an Arrowhead 140 can be brought in on the £250m budget with this specification. All involved with the T31 programme should be commended if they actually arrive on time and on budget. It's a lot of ship for the money but it's not all good news IMO. 2: A 57mm gun is great, much be...
by donald_of_tokyo
15 Sep 2019, 12:24
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10472
Views: 549382
Location: Japan

Re: Current & Future Escorts - General Discussion

The STRN graphic also notes the Thales UMS 4110 HMS as a possibility - seems like a fairly capable system (used on Horizon and FREMM) https://www.thalesgroup.com/en/worldwide/defence/ums-4110-hull-mounted-sonar Shown in the graphic, but none in the document. As HMS is noted as "fit-to-receive&...
by donald_of_tokyo
15 Sep 2019, 10:20
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10472
Views: 549382
Location: Japan

Re: Current & Future Escorts - General Discussion

New details from SafetheRoyalNavy site on T31 Arrowhead. Interesting read. https://www.savetheroyalnavy.org/more-details-of-the-royal-navys-type-31-frigate-emerge/ The agreed timeframe will see steel cut in 2021, the first vessel in the water in 2023 and delivery of the five frigates between 2024 –...
by donald_of_tokyo
15 Sep 2019, 10:04
Forum: Royal Navy
Topic: Type 31 General Purpose Frigate [News Only]
Replies: 6150
Views: 349539
Location: Japan

Re: Type 31 General Purpose Frigate [News Only]

sorry virtually a cross post from STRN site comment 1: What will be transferred from T23? Floating radar-decoy, chaff/flare dispenser, and SeaSeptor data-link, mushroom-tube launchers and associated electronic boxes? I hope SeaSentor torpedo-defense decoy system to be transferred. As ripping off th...
by donald_of_tokyo
15 Sep 2019, 09:29
Forum: Royal Navy
Topic: Type 31 General Purpose Frigate [News Only]
Replies: 6150
Views: 349539
Location: Japan

Re: Type 31 General Purpose Frigate [News Only]

New details from SafetheRoyalNavy site on T31 Arrowhead. Interesting read.

https://www.savetheroyalnavy.org/more-d ... te-emerge/

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