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by donald_of_tokyo
25 Oct 2020, 23:15
Forum: Royal Navy
Topic: River Class (OPV) (RN)
Replies: 3624
Views: 545135
Location: Japan

Re: River Class (OPV) (RN)

Ron5 wrote:No hangar.
Exactly. Very reasonable thinking = no need for hanger for a assets operated within land based air cover.

Another point is What sonar?
I guess it will be BlueWatcher, hull mounted FLASH, now tested onboard one of the La Fayette frigates.
by donald_of_tokyo
25 Oct 2020, 14:31
Forum: Royal Navy
Topic: River Class (OPV) (RN)
Replies: 3624
Views: 545135
Location: Japan

Re: River Class (OPV) (RN)

New info on French navy new OPV. Very interesting to be compared with River B2. - displacement ~2000t - Length ~90m - speed 22kt - range/endurance 5500nm/40 days - surface-to-air radar - sonar - CMS - a 40 mm RAPIDFIRE gun with EO/IR - a flight deck, but may NOT be with a hangar. - 140 days at sea /...
by donald_of_tokyo
25 Oct 2020, 14:07
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 12333
Views: 1612171
Location: Japan

Re: Current & Future Escorts - General Discussion

VL MICA next generation. Key point (for me) is shrinking the electronics systems to improve the motor, adding the "second pulse" mode, so that the missile can add its kinetic energy "somewhere" on the route. I think, - If ignited at the peak of the ballistic trajectory, it can si...
by donald_of_tokyo
25 Oct 2020, 01:48
Forum: Royal Navy
Topic: Future ASW
Replies: 397
Views: 85707
Location: Japan

Re: Future ASW

Info from SavetheRoyalnavy site, thales has released CAPTAS-1 trial movie. Great to see. Apparently, system design has been improved compared to that used in the test onboard LCAT last year. Sonar reel and deploy system is in a 10ft container size, with another 20ft container presumably used for con...
by donald_of_tokyo
15 Oct 2020, 13:53
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 12333
Views: 1612171
Location: Japan

Re: Current & Future Escorts - General Discussion

Harpoon carries a 220 kg HE warhead. The RN has long recognised that for some classes of surface ships, one harpoon will not be enough (there are good reasons why RN decided to carry 8 Harpoon as standard). Although there are clear differences in fusing, fragmentation effects, etc., in terms of HE ...
by donald_of_tokyo
13 Oct 2020, 15:32
Forum: Royal Navy
Topic: Type 31 General Purpose Frigate [News Only]
Replies: 6663
Views: 926794
Location: Japan

Re: Type 31 General Purpose Frigate [News Only]

Dont know if this has been posted elsewhere, but could possibly be relevant to T31 : https://navalnews.net/sh-defence-presents-the-cube-multipurpose-module-for-naval-vessels/ Would undoubtedly improve the flexibility and utility of T31.....but being yeat another NIH system might prove a brigde too ...
by donald_of_tokyo
13 Oct 2020, 01:19
Forum: Royal Navy
Topic: Type 31 General Purpose Frigate [News Only]
Replies: 6663
Views: 926794
Location: Japan

Re: Type 31 General Purpose Frigate [News Only]

Above says no chance of them all being commissioned by 2030, so that means 2 years of extra work for the last of batch. Makes you wonder what they're planning. So accepted off contract following trials from Babcock, and then straight into a further round of mods at, for instance, Devonport? And whe...
by donald_of_tokyo
13 Oct 2020, 01:14
Forum: Royal Navy
Topic: River Class (OPV) (RN)
Replies: 3624
Views: 545135
Location: Japan

Re: River Class (OPV) (RN)

I don’t believe the French have got the memo to say OPVs should not be armed with anything more than a sharp stick.. https://www.janes.com/defence-news/news-detail/france-to-arm-future-opvs-with-rapidfire-naval-ciws Replacement for 7 A69 "Corvettes" and 3 54m-patrol-crafts, being 10 90m-O...
by donald_of_tokyo
11 Oct 2020, 10:20
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 12333
Views: 1612171
Location: Japan

Re: Current & Future Escorts - General Discussion

Again, not sure. But, Babcock announcement clearly stated the modification is minimal. So I think also the range is not changed, but only it’s definition. For example, temperature and sea state affects it. In addition, margin shall be there. Range of River B2 has also shortened after RN contract. Lo...
by donald_of_tokyo
11 Oct 2020, 08:08
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 12333
Views: 1612171
Location: Japan

Re: Current & Future Escorts - General Discussion

The type 23 is in RN service rated at 28 Knots but HMS Sutherland topped out at 34 knots on trials in 2008 Not sure, but there were some saying it was just screw rotation speed? If it is GPS speed, corrected for tides, then the number becomes meaningful. BUT, anyway, it all depends on the condition...
by donald_of_tokyo
10 Oct 2020, 16:25
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 12333
Views: 1612171
Location: Japan

Re: Current & Future Escorts - General Discussion

From T31 news thread. https://www.babcockinternational.com/news/type-31-progress-update/ Analysis: See diagram shown at 10:52 of the movie clip. ... - Max speed stated as 26.1 knots, not 30 knots (Might be 100% MCR vs 80% MCR?) We all know ship speed is a function of, load (full load or light), sea-...
by donald_of_tokyo
10 Oct 2020, 03:25
Forum: Royal Navy
Topic: Type 31 General Purpose Frigate [News Only]
Replies: 6663
Views: 926794
Location: Japan

Re: Type 31 General Purpose Frigate [News Only]

Another interesting points I noticed. - Babcock guy continuously states Rosyth facility is NOT ONLY for T31. It is designed to be used for future ship building and stuffs other than ship. Although they are hoping for T31 export, they keep saying they are not reliant on it. - 3D digital ship building...
by donald_of_tokyo
10 Oct 2020, 03:11
Forum: Royal Navy
Topic: Type 31 General Purpose Frigate [News Only]
Replies: 6663
Views: 926794
Location: Japan

Re: Type 31 General Purpose Frigate [News Only]

https://www.babcockinternational.com/news/type-31-progress-update/ Analysis: See diagram shown at 10:52 of the movie clip. - Notably, it is officially now 3 Pacific24 RHIBs, not 4. The port-side alcove is now only one, not two. - CAMM remains to be 12 (although not numbered) - Core crew is 105 not 9...
by donald_of_tokyo
08 Oct 2020, 12:05
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 12333
Views: 1612171
Location: Japan

Re: Current & Future Escorts - General Discussion

Or, BAES Clyde ? I understand your economic case for such a proposal but I think it would be highly damaging politically unless both programmes could progress concurrently. Sorry, what do you mean by "both programmes"? T26 and missile crafts? I'm sure, it is doable to build T26 and a miss...
by donald_of_tokyo
07 Oct 2020, 15:14
Forum: Royal Navy
Topic: Bay Class Landing Ship Dock (LSD (A)) (RFA)
Replies: 347
Views: 93704
Location: Japan

Re: Bay Class Landing Ship Dock (LSD (A)) (RFA)

Nice movie. Although not so many "new-info.", for me the close-up of CIWS mounts (both forward and backward), and the lift detail was interesting.

by donald_of_tokyo
07 Oct 2020, 14:51
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 12333
Views: 1612171
Location: Japan

Re: Current & Future Escorts - General Discussion

Great news but is it to be Appledore or Cammell Laird Or, BAES Clyde ? Barzan-class is of VT design, and VT is officially now included in BAES. Although not good thing, building in Clyde will also "allow" HMG to "step aside T26 build by 1 year", because some of the engineers/lab...
by donald_of_tokyo
02 Oct 2020, 10:22
Forum: Royal Navy
Topic: River Class (OPV) (RN)
Replies: 3624
Views: 545135
Location: Japan

Re: River Class (OPV) (RN)

from "https://mobile.twitter.com/HMSTrent/status/1311335512779743238" Interesting HMS Trent coming back to UK after long deployment to Mediterranean, and will "sail for foreign shores again this winter." It means, she was long deployed to Mid (including Gibraltar), but not "...
by donald_of_tokyo
01 Oct 2020, 15:59
Forum: Royal Navy
Topic: Type 31 General Purpose Frigate [News Only]
Replies: 6663
Views: 926794
Location: Japan

Re: Type 31 General Purpose Frigate [News Only]

https://www.baesystems.com/en/article/bae-systems-awarded-naval-guns-contract-for-uks-type-31-frigate-program Thanks. Three points to note. The agreement, through a contract with Babcock International, will supply ... 1: I understand this means these guns are included in the £1.25B contract with Ba...
by donald_of_tokyo
01 Oct 2020, 12:43
Forum: Royal Navy
Topic: Type 26 Frigate (City Class) (RN) [News Only]
Replies: 4158
Views: 648964
Location: Japan

Re: Type 26 Frigate (City Class) (RN) [News Only]

Poiuytrewq wrote:This is what REAL investment looks like.
Very Impressive :clap:
Who owns this infrastructure? Assets in Osborne, used for DDG build, was own by government and leased to ASC (the consortium for the build program), as I understand. In this case, who own this?
by donald_of_tokyo
28 Sep 2020, 16:21
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 12333
Views: 1612171
Location: Japan

Re: Current & Future Escorts - General Discussion

Sorry to interrupt. Azerbaijan Air Force drone destroying Armenian air defences, and convoys. Interesting the Armenia do not have efficient drone-killing AAW weponaries. What is killed is the AAW missile system with radar rotating. In UK/RN case, it will be Stinger SAM? LMM? or StarStreak SAM? Or, 5...
by donald_of_tokyo
28 Sep 2020, 15:50
Forum: Royal Navy
Topic: Project Crowsnest- status?
Replies: 130
Views: 32434
Location: Japan

Re: Project Crowsnest- status?

Interesting twitter thread.



See also, https://www.savetheroyalnavy.org/the-st ... t-project/
by donald_of_tokyo
28 Sep 2020, 15:43
Forum: Royal Navy
Topic: River Class (OPV) (RN)
Replies: 3624
Views: 545135
Location: Japan

Re: River Class (OPV) (RN)

HMS Medway to support British Virgin Islands' border control is just good. But what is the problem here? It looks like BVI governor took very strong action.

PS How about other dependencies?

by donald_of_tokyo
28 Sep 2020, 13:11
Forum: Royal Navy
Topic: Type 45 Destroyer (Daring Class) (RN) [News Only]
Replies: 1275
Views: 237921
Location: Japan

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

I understand Navy is using the same canister. We can see the square top panels of the canisters in many photos (e.g. those on HMS Argyll). So, "what are the mushroom caps for?" is the main question. Or, "can it be more compact?". I guess the answer is yes, if someone just pays a ...
by donald_of_tokyo
27 Sep 2020, 15:01
Forum: Royal Navy
Topic: River Class (OPV) (RN)
Replies: 3624
Views: 545135
Location: Japan

Re: River Class (OPV) (RN)

From "https://mobile.twitter.com/NeilRitchie86/status/1309918019297124358"

Really stunning, isn't it? Great photographer (of course HMS Spey herself is great).

Image

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