Project 2038.0: Steregushchy Corvette

20385 was going to have MTUs.
They've put in Kolomnas with a new domestic gearbox. (but less power than the MTUs would have had)

hoom wrote:20385 was going to have MTUs.
They've put in Kolomnas with a new domestic gearbox. (but less power than the MTUs would have had)

The Kolomnas have been failures with constant breakdowns, intense vibrations, faulty sensors, failed hydraulic power, broken crankshafts... problems too long to list. The ships cannot even go into reverse and not fit for open seas. Still waiting on that gearbox... as if that will magically fix the problems. The whole range of engines is in prototype stage, another decade before it could be proven and a bunch of shells with no reliable engines.

WTF are you talking about?  

There were big problems with 20380 engines initially but its been said several years ago that they figured out an issue with the exhaust installation, re-designed & reworked, I'm not aware of major issues since.


Last year two of the 20380s went to Gulf of Aden & back then after short stop a jaunt around the British Isles without any sign of engine issues.
They have made several forays out into the North Atlantic last couple of years.


Gremy has the new gearboxes, they were installed same time as the engines back in 2016.
Its literally in video moving around under its own power today.

There is no reverse on 20385 because Gremy has variable pitch props -> not needed.

What are you talking about? If they had fixed the problems years ago there would be a dozen of each type in service as the state armaments plan stipulates.

I'm talking about gearboxes that do exist & ships that go on long voyages without problems in recent years.

You're talking about the situation for this class of years ago as if there have been no changes or improvements.
There have been.

I'm curious about the greebly bits in the top part of the mast

(crop from one of above pics)
Looks like some kind of optical gear, possibly DIRCMs type stuff?

Subtle convex curvature of most of the antenna covers I think implies air-cooled?
At least thats what was said about Type 054C vs D.

Edit: as ever a whole slew of pics at http://bastion-karpenko.ru/20385-gremyshii-190421-1/ and http://bastion-karpenko.ru/20385-gremyshii-190421-2/

'Dat profile


Haven't seen a good rear angle before

EO systems (cameras, laser and so on).



No more "balls".

Thats a good comparison shot thks

Yeah I guess its probably mainly just that, hadn't noticed there weren't conventional EO balls elsewhere  
There are the normal periscopes on the bridge wings.

Looks like a large sensor top (equivalent to the ball next to Furke?), 2 smaller ones below (Bagira for the Ak-630s?).



Model vs Reality comparison & Profile collage via Charly015 http://charly015.blogspot.com/2019/04/en-mayo-se-botara-la-primera-corbeta.html

hoom wrote:I'm talking about gearboxes that do exist & ships that go on long voyages without problems in recent years.

You're talking about the situation for this class of years ago as if there have been no changes or improvements.
There have been.

If there have been improvements then they should be entering active service like hotcakes... where is that?

If there are no gearboxes how is Gremy starting sea trials?
If the engines are unreliable why are wee seeing 20380s doing long & frequent patrols?

I didn't claim production is fast.
I'd certainly like to see a lot more built and more quickly.

Well if engines and gearboxes are new surely the sensible thing is to get a couple into the water and then sail around a lot with them and work out any bugs or problems and issues so there is some certainty that the design and more importantly the manufacturing is solid before making them in large numbers...

hoom wrote:If there are no gearboxes how is Gremy starting sea trials?
If the engines are unreliable why are wee seeing 20380s doing long & frequent patrols?

I didn't claim production is fast.
I'd certainly like to see a lot more built and more quickly.

Do you see them doing long and frequent patrols?  I seem to recall the Baltic Fleet commanders being fired because the four Project 20380s had not deployed to the Mediterranean or Indian Ocean a single time in nine years, they had a low combat readiness and suffered numerous accidents and fires.

Yes I do.

Look back through the thread, as I said 2 of them went to Persian Gulf and back last year then after a short break went out round the British isles.
There have been several other patrols mostly by pairs out into North Atlantic.

Long range patrols are not what 20380s should be doing though, they're supposed to be short range ASW guards, I'd rather see them doing lots of short patrols.

Hoom is right, corvettes are not supposed to do long range patrols, especially not alone

Let me quote Papa, "At least they go the rust right" Holy mother of God that amount of oxide.

hoom wrote:Yes I do.

Look back through the thread, as I said 2 of them went to Persian Gulf and back last year then after a short break went out round the British isles.
There have been several other patrols mostly by pairs out into North Atlantic.

Long range patrols are not what 20380s should be doing though, they're supposed to be short range ASW guards, I'd rather see them doing lots of short patrols.

They didn't make it into the Med until the end of 2017 and have gone no further. They have a range of 4000nm, with a replenishment ship they are expected to patrol the Med and the Indian Ocean which is why the Baltic Fleet commanders were fired.

These shortcomings include the unsatisfactory performance of Baltic Fleet minesweepers during exercises that took place in August 2015, combined with a low level of combat readiness among the fleet’s newest ships. The fleet’s four Project 20380 Steregushchiy class corvettes have not deployed to the Mediterranean Sea or Indian Ocean a single time in the nine years since the first of the ships was commissioned into the fleet. Furthermore, the ships have had more than their share of accidents and fires.

https://russiamil.wordpress.com/2016/06/29/baltic-fleet-commanders-fired/

Isos wrote:

Steregouchys needs to be used like Israeli uses their corvettes. Near the shores, fast, coordinated with each other and with air force to destroy any threat out there.

Not alone in the middle of pacific or mediteranean. That's a job for destroyers.

We must maintain presence so you work with what you have. Corvettes is what we got.

Isos wrote:You also have 3 Grigorovitch but Black sea is very hot right now so they keep them there. But once syrian war and Ukrainian conflict are finished we may see them replaced by Gremyashy and variants.

The engine situation with Grigorovitch is even worse. The engines in service are black listed by Ukraine and the M90FR expected next year from Rybinsk is behind schedule.

Isos wrote:..........
Why don't they use aluminium made structure ? Isn't it the new material for light ships ?
......

Ask British Navy veterans from Falkland War what they think about aluminium hulls and their combustibility

Isos wrote:
Why don't they use aluminium made structure ? Isn't it the new material for light ships ?

Aluminium is okay for smaller displacement ships and fast craft, however for bigger ships it has issues with long term fatigue of material and its melting point is fairly low, read it burns. So marine and construction steels are still the way to go. LCS for an example is made mostly from marine steel on top of aluminium skeleton superstructure.

LCS for an example is made mostly from marine steel on top of aluminium skeleton superstructure.

Mixing metals in a salt water environment... not a great idea....

Vladimir79 wrote:They didn't make it into the Med until the end of 2017 and have gone no further.  They have a range of 4000nm, with a replenishment ship they are expected to patrol the Med and the Indian Ocean which is why the Baltic Fleet commanders were fired.  

https://russiamil.wordpress.com/2016/06/29/baltic-fleet-commanders-fired/

And in the several years since then things have improved.

I'm not saying there are no problems and everything is hunkydory.
There are plenty of problems and I'm pretty sceptical that the Zaslon radar system on 20385 is going to be working well out of the box.

I'm saying 20380s have been much more active recently and 20385 has its engines and gearbox, both of which you said haven't happened but actually have.

hoom wrote:20385 has its engines and gearbox, both of which you said haven't happened but actually have.

I never mentioned 20385, I said Grigorovich which is Project 11356.