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FORBIN

Lieutenant General
Registered Member
Wooww ! :p

Powerful war machine ofc with unusual arrangment for a Russian as US Subs TT on the sides, only 533 mm no 650 and " one hull and half ".
Wide as an Akula 13.5 m but more long 119 m, able to move to 31 kn, dive max 600 m as Akula, Sierra, Oscar, seems reactor have a service life of 25/30 years which is a big progress for Russian.

Small crew for a big Sub 90 sailors, Russians have less numerous than US.
62 weapons !

Seems the new variant 885M don't have a pump jet.

Yasen.jpg
 
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Jeff Head

General
Registered Member
Wooww ! :p

Powerful war machine ofc with unusual arrangment for a Russian as US Subs TT on the sides, only 533 mm no 650 and " one hull and half ".
Wide as an Akula 13.5 m but more long 119 m, able to move to 31 kn, dive max 600 m as Akula, Sierra, Oscar, seems reactor have a service life of 25/30 years which is a big progress for Russian.

Small crew for a big Sub 90 sailors, Russians have less numerous than US.
62 weapons !

Seems the new variant 885M don't have a pump jet.

View attachment 29697
The Yasen is a GREAT design.

Only trouble is, it took them 15+ years to commission the 1st, and now seven years to launch the second (which is not commissioned yet).

The Russians are simply hobbled in production. They will be lucky to have five of these by 2025.

The US has now launched 14 Virginia class SSNs (which are every bit as good in terms of warfare, and better in terms of electronics and sensors) in far less time, and have six more at various stages of building, and ten more beyond that approved.

So, by 2025, the US will have something on the order of 28-30 Virginia's and the Russians may have five Yasens.
 

FORBIN

Lieutenant General
Registered Member
Really amazing view !

Right ! and lont ime for build finaly now ramp up in progress it is the most expensive Russian Subs much more than Borey IIRC the first have cost 2 billions $ ! enormous for a Russian which buil cheaper, next less expensive.

Yasen very powerful but less quiet than last US and US sonars, fire control systems are very reputed for be the besy, so in a dual normaly US win, detect and fire in first.

For the double hull many decades Russians do Nuclears, Kilo also but no Lada, no sure for Borey and as i have say Yasen 1.5 hull.

Advantages :
Subs more resistant dive deeper in general 600 m as Seawolf only no Russian, more resistant* to damages less chance for a critical hit a torpedo breach the interior pressure hull also better buoyancy.
* Oscar II more vulnerable with big missile between the 2 hulls.

Disadvantages :
Definitely more difficult to build but mainly with huge ballasts between the hulls more long to to fill or empty definitely more long for plunge or do surface and need much more holes enough big so the hull is less hydrodynamic, Subs more noisy.
 

FORBIN

Lieutenant General
Registered Member
It is confirmed now the last 3 Grigorovich, also Gorshkov don't have new turbines before several years confirming precendent rumors but now really make sense India can buy these last 3 Grigorovich equiped with turbines purchased by India.

India to acquire three Admiral Grigorovich-class frigates from Russia

Russia will supply three Admiral Grigorovich-class (Project 11356M) frigates to India that were originally intended for the Russian Navy's Black Sea Fleet, according to a source in the Russian defence industry.

"The relevant concealed agreement has been achieved, and India will receive the second three of Project 11356 frigates being built for the Russian Navy. The Indian side has obtained 12 spare tool and accessory kits for the ships," the source said.

The only issue at the moment is that the vessels, which are being constructed at the Kaliningrad-based Yantar Shipyard, use a Ukrainian Zorya-Mashproyekt gas-turbine propulsion plant. The 2014 Ukraine conflict slammed the door on co-operation between Moscow and Kiev over critical propulsion system components, especially marine gas turbine engines.

While Russia has already received the propulsion systems for the first three frigates, Ukraine's termination of defence exports to Russia has left the final three without their turbines, with indigenous replacements possibly not be available before 2019.

While Ukraine says it will not supply the engines to Russia, the source told IHS Jane's that India could use previously acquired Ukrainian engines. Alternatively India could acquire new engines directly from Kiev.

Meanwhile Moscow and New Delhi are considering transporting the frigates' hulls from the Yantar Baltic Shipyard to India to enable the further construction of the ships and the installation of the engines in the country.

The additional three Project 11356 frigates for the Indian Navy - No. 360 Admiral Butakov , No. 361 Admiral Istomin , and No. 362 Admiral Kornilov - will reportedly be equipped with the BrahMos cruise missile system.

Admiral Grigorovich-class vessels are variants of the Talwar (Krivak III)-class frigates, of which six were built for the Indian Navy at the Yantar Baltic Shipyard between 2003 and 2013.

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Renewal projects of Russian surface fleet severely feeling the effects of the Ukrainian crisis, including the end of the technical and technological cooperation with foreign countries. The termination of delivery of gas turbines by Zorya Ukrainian-MachProject will lead to considerable delays in admission to active duty last three frigates of Project 11356M, and in those of the 22350 project, whose target is 6 units
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related to
... don't have new turbines before several years ...
... I've read in Russian Internet at one point strong enough turbine(s) almost certainly can be obtained from Rybinsk
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but likely a bigger problem is going to be the reduction gear(s) ... the task for Saint Petersburg
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I mean it all then critically depends on tiny components, and for me that's a typical example for
If Something May Fail, It Will
 

Jeff Head

General
Registered Member
It is confirmed now the last 3 Grigorovich, also Gorshkov don't have new turbines before several years confirming precendent rumors but now really make sense India can buy these last 3 Grigorovich equiped with turbines purchased by India.
This will be good for India. They already have six Talwars, now with these three they will have nine of these very decent frigates.

The main difference in these, as can be seen, is that the Talwar FFGs that went to India have the single arm launcher for its anti-air missiles forward, while the Project 11356 use VLS for the anti-air.

Indian Talwar Class
INS_Trikand_Talwar.jpg

Project 11356 classProject-11356-frigate.jpg

I am thinking that the new FFGs for India will have the VLS.
 

FORBIN

Lieutenant General
Registered Member
Yep, only difference except design a little more stealth, helipad, the SAM laucher with arm replaced by a VLS, same number of SAM 24 but rate of fire 10 miss/mn vs 30 max but same FC radar MR-90 Orekh x 4 1 target engaged max by radar so 4 in fact limit the more big rate of fire especialy vs target to long range need more time for engagement.

SA-N-6/20 " VLS " max 20 miss/mn revolver system different but the fist VLS in service.
Redut/Polyment as MK-41, 60

The best with arms MK-26, 12 was a very good system.

I see Jura rather interested by some prices if India buy :)
 
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