owais.usmani
New Member
The first Salvo start "Bulava" is planned for August-September
two missiles, one after the other..........late August or mid september.
two missiles, one after the other..........late August or mid september.
If you refer to the Kirov class the only one that has started some repairs is the Admiral Nakhimov. And they needed more money to finish it.The contacts for the 3rd and 4th Mistrals will be signed by the end of the year.
Russia to sign deal for 2 more French warships by yearend | World | RIA Novosti
BTW,
What about the plans to bring the moth balled cruisers back to service? Any news on this?
Having seen the cabins on board the Mistral Class and the cabins on the Project 20380 Corvettes I imagine the crews will be fighting to get on board a Mistral. Will the Russian Navy keep the French style cabins or will they decontent them.The contacts for the 3rd and 4th Mistrals will be signed by the end of the year.
gf0012-aust said:that's seriously bad build quality on that sail.
you'd want to make sure your recovery team is on standby once you started depth tests.....
They look nothing like the tiles on Western subs because the Western subs don’t employ anechoic tiles on most submarines (exceptions do exists) as far as I can remember. Only anti-reflecting coating. That’s why one can’t see as many joints on the Western subs’ single hulls as on the Russian ones.StevoJH said:They look nothing like the tiles on Western Submarines, so is it badly fitted sheet metal or badly fitted tiles?
Well, I can certainly see the tile joints. But that’s the plating joints and not tile joints. Also, the bulges just aft the sail and forward on the starboard side (probably sensor-housings), how much drag do you think they’d cause at high speeds? Plus the forward upper-sail passive sonar mountings? Can you see plating-joints there? I can.gf0012-aust said:…eg look at Collins - can you see any indication of poor fitment or even where the tiles join?
I beg to disagree with that statement. With the sail part, i.e.btw, acoustic matting is not normally applied to the walls of a sail. the signature management issues are more important elsewhere
The bow length of the Yasen/Severodvinsk Projekt 885 is much shorter while the overall length is much greater. That’s in no lesser part due to the installation of vertically launch tubes for ASW and AS missiles. The length of the sail seems to be identical (as well as the overall design) but the aft tapering into the hull seems to be more abrupt then on 971.Sandhi Yudha said:Thanks for posting the link, impressive boat!
But for me, i can not see the difference between a Proyekt 971 and an 885....
and the fact that the tiles are missing means that it is acoustically transmitting. there are about 6 members in here who either work/worked in the sub industry or are ex submariners - one is an ex nuke driver. any one of us would beg to differ from real world experience that "it's nothing bad"It’s certainly a Russian building aspect but nothing bad with it really. The shot showing Severodvinsk’s sail for instance shows the sub without the anechoic tiles. That’s the outer hull plating.
actually they don't wear so much from weather exposure issues, they come off due to hull contraction issues as they go through pressure changes. Also modern anechoic tiles (in the last 10 years at least) do NOT use rubber inserts.Granted there seems to be some bending and undulations of the plating in there but the next step is the application of a special adhesive paste compound (which would even the plating joints) over which then the anechoic tiles are fixed. After that, the next step is the affixing of rubberized inserts in between the tiles’ joints so to even further the cavities. At last, antifouling paint is applied. These inserts tend to wear in time, especially after repeated deployments and exposure to weather and water pressure (bending of the tiles, missing tiles and the reappearing of the cavities at the joints being visible again).
and that has SFA to do with why the tiles are coming off.One should also take in consideration the more complex and demanding plating process with a double-hull design which is the trademark of Russian submarine building for a very long time.
actually, anything above 5 knots will turn the sub into a trnasponder. its the nature of acoustics. all things considered, your comment is just not based on fact and the real world evidence. A sub with a missing set of tiles above 5 knots starts to develop a new signature footprint over various speeds and depths. You can name the sub based on this footprint -All things considered, these aspects have near to no significance for the underwater drag effect (eddies that cause the so-called skin drag) while the sub is in silent-drive patrol mode. At higher to maximal speeds, that’s another story.
the Russian equiv of the submarine league doesn't think so - in fact they acknowledge that the soviets/russians had the woerst accident and availability of any navy.All in all, the Russians are known to build some of the toughest submarine hulls so there is doubtful any need for recovery teams on standby…
are you serious??? its not about how smooth the hull looks at dockside - its how it reacts at changes in depth - thats what causes hull contraction and expansion and is what causes the tiles to shift.Some examples:
Please note the smoothness of Borei’s outer hull before the applications of the tiles. Can you still see the bad build?
again, some of us have worked in sub building, I'm not the only one in here either. To claim that "it doesn't look bad" is not an engineering comment of any orderNow, the process of tiles application. It really doesn’t look bad at all to me. Again, depends on the quality of the shot, lighting, etc.
followed by:
Omsk in the dry dock with her emergency escape pod removed. I can almost count the joints between the tiles but still, I don’t find it bad.
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Or here. Tell me that what you see looks bad. The tile joints are barely visible. That’s because of the freshly aplied rubberized inserts I was talking about. A Projekt 667BDRM in all her glory indeed.
what absolute rubbish. all "western" nukes are tiles, all chinese nukes are tiles, and the conventionals designed to dive deep and kill nukes also have tiles.They look nothing like the tiles on Western subs because the Western subs don’t employ anechoic tiles on most submarines (exceptions do exists) as far as I can remember. Only anti-reflecting coating. That’s why one can’t see as many joints on the Western subs’ single hulls as on the Russian ones.[
Well, I can certainly see the tile joints. But that’s the plating joints and not tile joints. Also, the bulges just aft the sail and forward on the starboard side (probably sensor-housings), how much drag do you think they’d cause at high speeds? Plus the forward upper-sail passive sonar mountings? Can you see plating-joints there? I can.
I beg to disagree with that statement. With the sail part, i.e.
The bow length of the Yasen/Severodvinsk Projekt 885 is much shorter while the overall length is much greater. That’s in no lesser part due to the installation of vertically launch tubes for ASW and AS missiles. The length of the sail seems to be identical (as well as the overall design) but the aft tapering into the hull seems to be more abrupt then on 971.
Very easy to differentiate IMO.