Jump to content

General Naval Warfare News/Technology thread.


Belesarius
 Share

Recommended Posts

Quote

   Nuclear submarine missile cruiser "Kazan" was accepted into the Navy.

   The Commander-in-Chief of the Russian Navy, Admiral Nikolai Evmenov, noted that the Yasen-M submarine is the most modern missile carrier, it embodies advanced developments.

   The nuclear submarine "Kazan" - the lead ship of the improved project 885M of the 4th generation nuclear submarines - became the 134th ship built at Sevmash for the Navy.

image

 

Spoiler

image

 

image

 

image

 

image

 

Link to comment
Share on other sites

  • 1 month later...
  • 4 weeks later...

   Ukrainian shipyard is no more. It started it's work over 120 years ago, in Soviet times was building different military ships, including Kuznetsov aircraft carrier.

Source

Quote

   The process of complete liquidation of PJSC "Black Sea Shipbuilding Plant" (ChSZ), which participated in the program for the construction of Ukrainian corvettes, has been completed. This is reported by Defense Express with reference to the report of the liquidator of the enterprise.

 

   All employees of the enterprise, built 124 years ago, were fired, all property was appraised and sold to pay off debts. 

/.../

In 2018, the economic court of the Nikolaev region decided to terminate the rehabilitation procedure for the ChSZ, declare it bankrupt and open the liquidation procedure of the enterprise. 

 

image

 

Spoiler

image

 

image

 

image

 

Link to comment
Share on other sites

  • 4 weeks later...

The second Indian carrier (INS Vikrant) has started it's sea trials :

 

https://indiannavy.nic.in/sites/default/files/press_release_slide_image/Pix%201_8.JPG

 

Of STOBAR configuration and design based on the experienced acquired by the Indian navy on the ex Admiral Gorchkov (Kiev class).

Displacement of about 40 000 t with a top speed of 28 knots (18 cruise) propelled by 4 General Electric LM2500+ gas turbines.

Capable of holding about 30 aircraft (among those 26 MiG-29K), it may also carry Ka-31 helicopter MH-60R.

In the future it may also carry navalized Tejas as well as either Rafale-M or F/A-18 Super Hornet (depending on how their Multi Role Carrier Borne Fighters program goes).

 

https://indiannavy.nic.in/content/commencement-sea-trials-indigenous-aircraft-carrier-iacp71-‘vikrant’

http://www.opex360.com/2021/08/05/le-nouveau-porte-avions-indien-ins-vikrant-a-commence-ses-essais-en-mer/

Link to comment
Share on other sites

  • 5 weeks later...
  • 1 month later...

TIL that the Italian's Pugliese torpedo defense system was actually not that bad. The flooding issue that comes up when criticizing this system is due to it's own passive counter flooding mechanism. Pugliese incorporated several channels that ran through the triple bottom of the Littorio's that, when one side is struck and flooded, would transfer water towards the other side automatically, meaning the ship would roll less and would (hopefully) require less attention from the crew and could continue fighting. Counter flooding was normally done on all battleships after torpedo damage, to balance out the weight of the water in those compartments. Where the Pugliese (and all torpedo defense of that time) had problems is that torpedoes with magnetic fuses that ran just below the ship could do significant damage, as seen in Taranto 1940. 

 

further reading here: The Littorio Class - Google Books

Link to comment
Share on other sites

  • 4 weeks later...

Some links on naval nuclear power.  I'm still looking for the original report from the '60's.

 

https://sgp.fas.org/crs/weapons/RL33946.pdf

 

https://www.cbo.gov/sites/default/files/112th-congress-2011-2012/reports/05-12-nuclearpropulsion.pdf

 

https://www.govinfo.gov/content/pkg/GAOREPORTS-NSIAD-98-1/html/GAOREPORTS-NSIAD-98-1.htm

 

https://www.gao.gov/assets/psad-77-74.pdf

 

https://www.everycrsreport.com/files/20070613_RL33946_6de321a5ef541cbe3eea291e0954285becb24966.pdf

 

Edit:  I found the old paper:

 

https://catalog.hathitrust.org/Record/001622850

 

Apparently it costs around $400 million per shaft for nuc power on a surface ship.  (I've also seen 400 mil per ship).  The next gen ships need massive power for DEW, railguns, and sensors.   Their endurance on fossil fuel will be less unless innovations like electric propulsion and recuperated GT's can make up the difference.

 

Nuc ships cost more and require more personnel.  Some of the personnel are more expensive.  They can transit at top speed and do not need to slow to refuel.  Oil fired ships actually require very little time to refuel but cannot transit as fast as nucs without using lots of fuel.  Before life of ship nuc cores the nuc ships required longer refits.  The debate seems to have settled on subs needing to be nuc, aircraft carriers being better with nuc, and surface ships being oil fired.  The aircraft carrier debate was still going in the '90's and for the same $ more oil fired carriers can be had.  Maybe it was stack gas corrosion that made the decision.  One of the docs I found showed not much advantage for nuc carriers vs oil fired.

 

One intriguing idea that was not in the docs I found was making the replenishment ships nuc or even using excess power to make synfuels on the replenishment ships.

 

 

Edited by Domus Acipenseris
Added a link and commentary
Link to comment
Share on other sites

  • 1 month later...
  • 4 weeks later...

Somebody at Rubin OKB  had to much time on their hands and decided to do another take on "Strazh" proposal/concept of a submersible patrol and training vessel.  Displacement increased to 1300t  and overall length up to 72 meters.  Tops speed of 21 knots and a range of  4,000 miles at a speed of 10 knots,    Armament is a machinegun, what looks like a pair of kornet launchers and four 324mm torpedo tubes.  Additionally there are pair of hangers in the back for rotary winged UAV's and gear for boarding parties.

 

IKnp9Nk.jpg

 

Ko6fRSq.jpg

 

fnckLMT.jpg

 

XddwHRm.jpg

 

u7XPG6I.jpg

Link to comment
Share on other sites

  • 1 month later...

Without surprise the French FDI will carry less weapons than the Greek's

D664_Amiral_Cabanier_underway_in_rough_w

 

http://www.opex360.com/2022/03/23/les-fregates-belhrra-de-la-marine-nationale-seront-moins-bien-equipees-que-celles-vendues-a-la-grece/

  • 76 mm
  • 2x20mm RCWS
  • Seafire 500 for the radar
  • 8 Exocet Block 3C
  • 16 Aster 30B1 (instead of 32 for the Greeks)
  • 2xTwin MU90 torpedo launchers (instead of 2xtriple launchers)

No RAM or equivalent, but most importantly no jammer and reduced electronic warfare capability until at least 2026.

While the detection capability of those frigates (both in AAW and ASW) will be top of the line they'll barely have any self-protection capability (both because of the lack of jammer and possibly decoys as well as a lack of short-range missiles). They will be a nice addition to any naval task-force but will have troubles operating alone.

 

Also no increase in the number of "first line" frigates is planned. The objective remain 15 first line frigate by 2030 :

  • 2 Horizon class (AAW)
  • 8 FREMM (6 ASW + 2 with increased AAW capability)
  • 5 FDI (ASW but with the best radar in the fleet for now)

3 FLF "second line" frigates will receive minimal upgrades while waiting for the delivery of the FDI.

Link to comment
Share on other sites

  • 1 month later...
On 2/9/2022 at 9:35 PM, RobertV said:

Somebody at Rubin OKB  had to much time on their hands and decided to do another take on "Strazh" proposal/concept of a submersible patrol and training vessel.  Displacement increased to 1300t  and overall length up to 72 meters.  Tops speed of 21 knots and a range of  4,000 miles at a speed of 10 knots,    Armament is a machinegun, what looks like a pair of kornet launchers and four 324mm torpedo tubes.  Additionally there are pair of hangers in the back for rotary winged UAV's and gear for boarding parties.

 

IKnp9Nk.jpg

 

Ko6fRSq.jpg

 

fnckLMT.jpg

 

XddwHRm.jpg

 

u7XPG6I.jpg

Is there any future for such a concept ?

In France, there was a similar proposal : SMX-25 

dcns-smx-25-image01.jpg

 

An interesting article about it (in French) :https://lefauteuildecolbert.blogspot.com/2010/10/chronique-de-strategie-et-tactique_18.html?m=1

Link to comment
Share on other sites

On 5/16/2022 at 12:08 AM, Serge said:

Is there any future for such a concept ?

In France, there was a similar proposal : SMX-25 

 

The question is  asked what benefit does it bring,  at what cost and worth ?  The answer i have yet to read as nobody actually has one.

Link to comment
Share on other sites

  • 3 weeks later...

Video of the first RapidFire unit (not the mock-up) at Nexter (still lacking it's sighting system which will be installed later by Thales).

Nothing new in terms of technical informations and it remain unclear whether the system can participate in terminal missile defence (and to what extent).

Another line-up of the ammunition types available with a 40mm Bofors behind them for size comparison (6:56).

 

 

First units will be installed on a ship (likely the new BRF Jacques Chevalier which was launched last month) by the end of the year or early next year. Live fire trials are expected by the end of the year.

Link to comment
Share on other sites

  • 4 weeks later...
  • 4 weeks later...

DIdn't expected to see that, but here it is. Raptor with Afghanit was spotted during Navy Day parade in St.Petersburgfew days ago. Note that in the rear vertically mounted countermeasures can be also seen.

 

image.png

 


 

Spoiler

Screenshot-833

 

image

 

Link to comment
Share on other sites

  • 3 months later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...