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Severodvinsk

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Viewing 15 posts - 31 through 45 (of 514 total)
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  • in reply to: How do submarines communicate when under water #2062821
    Severodvinsk
    Participant

    They have that kind of communications buoy, at least the Russia subs have it, don’t have time to get you more information

    in reply to: Submarine speeds #2063085
    Severodvinsk
    Participant

    That one has two propellors too and two nuclear reactors, I suppose if you put enough powder behind a tanker it will reach 35kts too. The propellors are btw. a reason for it’s larger noise signature too, by causing much more cavitation… That’s probably the reason why US ALWAYS have one single prop!

    in reply to: Scorpion Class patrol boats.. #2063087
    Severodvinsk
    Participant

    Since my photobucket seems to be repaired, here you have Pilkiy, one of the two upgraded Krivak Is (Pylkiy in Baltic fleet, Legkiy in Norhtern Fleet).
    http://img.photobucket.com/albums/v609/Severodvinsk/5f431257.jpg
    This picture is taken by Guy Toremans! Please do not use it on any other site! And also try not to download it or my Photobucket will be closed again, which will force me to close it all down and send the pictures to the ones I think will appreciate them….

    You can see the Uran racks just in front of the bridge, but no associated radars (and given the shape of the racks, I wonder whether these are Uran racks at all)… Only the two Eye Bowl guidance radars for Silex/Rastrub, Palm Front (Navigation radars), two Pop Group (one on top of the Bridge, one in the back,the OSA-MA launcher is just behind the funnel) and the Kite Screech radar (in the back). The funny thing is of course that this ship still has two main guns in the back, of which the most aft one seems to be quite useless, given the new VDS that’s blocking the field of fire of this gunmount… One wonder’s if the gun has any use at all… Jonesy, you’ll get the high-res picture as soon as I finish my exams.

    As a general note, it should be said that all those new corvettes and frigates seem to have gotten rid of the RBU-launchers… The upgraded Krivaks also got the Uran racks instead of those RBU launchers… It’s good for “stealth” to get rid of those launchers, but I wonder why they got rid of them, since they are regarded as quite good systems!

    in reply to: Scorpion Class patrol boats.. #2063105
    Severodvinsk
    Participant

    Then the Russia Arms catalog has made a mistake…
    The large dome on top of the bridge, is a “Band Stand” (used for Moskit) as mentioned by Hazegray, I don’t believe that, I think it’s just the same dome, but with a Garpun-Bal underneath… I think the Algerian Nanuchka’s that were upgraded with Uran, had the same thing, although it could as well be a Band Stand after all, adapted to guide Uran too now. I’ll have a look at that when time allows. Anyway, the guidance radar for Uran is there for sure! Bass Tilt is there too (in front of the “Band Stand” )for the AK-630s and the main gun. As you can see, the same Positiv-ME (Wanshan you’re right) is on top of the mast on Tartarstan. Not for Kashtan of course. And of course the Pop Group is there for the OSA-MA, although this system is way too outdated, being only capable of tracking one target and guiding two missiles to that target… I’m not surprised by its failure on the export market.
    AFAIK, Neustrashimiy uses the ASW helo, since she’s really ASW oriented… I don’t know whether the guidance heloes they use can be used with this ship, normally you need a special datalink for that and I’m not sure whether Uran can receive such guidance either. They have always used in on their large missiles (Moskit, Bazalt, Granit). If it’s possible, then I suppose they could switch the helo as soon as Uran is fitted… BUt this won’t happen I suppose.

    I won’t be online for some time now, exams coming up, starting tomorrow (don’t worry, tomorrow is just English–>easy one).
    http://forums.airbase.ru/uploads/post-25-1087063241.jpg

    in reply to: Submarine speeds #2063108
    Severodvinsk
    Participant

    Normally I would credit the LA class with the highest speeds for current submarines. Probably indeed between 35-40kts. Akula probably has something like 32-35kts too. The best underwater shape is the cilinder, that is why merchant vessels still have roundings on their bottom. A rectangular shape would allow them to carry a larger volume, but to achieve more speed, you need a round shape. Since a round shape would be very bad for stability and internal volume, they chose the regular ship shape.
    Akula seems to have a better sail, but that is probably caused by her higher hullshape. Yet of course her hull is not cilindrical, and I suppose that would make her slightly slower than LA. NOT SURE about this of course, since I’m not in their development…
    I don’t know why they don’t use propellor tunnels either. I suppose the pumpjet has about the same effect of such a propellor tunnel, but normally these tunnels are used with normal props. They are built like a airplane with, pushing more water inside the tunnel, where the propellor can propel the vessel more efficiently. Or counterrotating props like torpedoes. I have a picture of a merchant vessel already using counterrotating props. Or would that make it too noisy?

    in reply to: Scorpion Class patrol boats.. #2063266
    Severodvinsk
    Participant

    Garry, Neustrashimiy is not fitted for but not with Uran, she doesn’t have anything that supports this weapon, no Garpun-Bal guidance radar, nor a rack. Those racks can be found on Pilkiy and Legkiy, the upgraded Krivak Is. They don’t have the weapon, nor the radar, but they at least do have the racks to fit the missiles if needed. The only ships in the Russian Navy with Uran are Smetliviy (Kashin 2) and Tartarstan (Gepard). I suppose after the sale of this weapon to India and Algeria, they suppose it is proven enough for export deals that they don’t need the weapon (by their demand) themselves to prove it any further. It’s probably much like Lada, I suppose that was one of the main reasons why they wanted to complete her first, after her trials, they have some material to promote the Amur export a bit further.

    in reply to: New Russian Landing Ship #2063270
    Severodvinsk
    Participant

    Well only Mitrofan Moskalenko is still in service with the Northern fleet, the others are out of service (scrapped?).
    What a weird vessel, the new one, seems quite unfinished, no radars and stuff… No mast…

    in reply to: Russian Navy Status #2063308
    Severodvinsk
    Participant

    Well US won’t attack anyway, so that isn’t the big problem. For China, the fleet is still sufficient to keep them off, and I’m quite sure no one wants to attack a country with SSBNs, no matter in what state those are. The Delta IIIs can even launch from alongside, while surfaced, so they don’t even have to sail to be dangerous.
    The Sierras are in the Northern Fleet (I think at Bolshaya Lopatka base with the Akulas and Deltas of the Northern Fleet). Although it should be said that the Sierras aren’t deployed anymore and are quite rotting away at thier piers.

    Pacific’s subs are a little less exercised than Northern Fleet ones. Although they probably have much less resources and units.
    The Kilo looked quite ok, although that was of course their best unit deployed to Yokosuka.

    in reply to: Russian Navy Status #2063324
    Severodvinsk
    Participant

    It’s not in such a bad shape…
    The Udaloys had some deployments with Varyag, same with the missile boats. There was a US-British-Russian exercise in the Peter the Great Bay this year. I think it was Vinogradov (Udaloy class) who participated in that exercise together with a Tarantul III and some ASW planes.
    There was of course also the Deployment to Yokosuka in Japan, in which a Kilo, Nanuchka III and Varyag participated. And some deployment to China with Varyag and Admiral Panteleyev (I think that was in 2003, not sure). Anyway, in the last years they have done at least some sailing and exercises and I was surprised and glad to see that it’s not always Varyag with Panteleyev who made the deployments, but that also some other units were involved. Everyone his turn I suppose…

    in reply to: Scorpion Class patrol boats.. #2063348
    Severodvinsk
    Participant

    It’s a good ship that always operates with the Sovremennys around it, no need for it to carry its own anti-ship missiles! It’s very capable to defend itself and very good for anti-submarine warfare, in which the Sovremennys lack a bit.

    Rastrub/Silex is an old system, as a anti-ship system it’s rather primitive and probably has little value in that role… As an anti-submarine missile it’s more useful, although it requires a very good sonar suite to be used to full advantage and range. I do think they can find a smaller and cheaper replacement by now though… The Medvedka missile has a range about half of Rastrub, about 20km.

    in reply to: Scorpion Class patrol boats.. #2063361
    Severodvinsk
    Participant

    Good question, these hatches have been my concern too. It’s not impossible that these are indeed hatches for a VLS, but since they seem to be single hatches I doubt it would have any weapons. It could as well be a supply hatch, like seen on many Russian vessels.
    Shtil, as I said before, it would be impossible since there is no guidance radar around… It could of course have a new active or IR guided SAM instead… I heard they were working on a R-27 or similar missile for VLS launches. It’s hard estimate the size of that hatch, but compared to the AK-630 mount, it looks rather small for more than 2 or 4 missiles…
    Considering the electronic outfit of this ship, the Klub and AK-630s and the main gun (both guided by the Bass Tilt) seem to be the only weapons. And since the Russians always use a different radar for most systems, I don’t think there’s anything else (except for the helo and torpedo tubes of course).
    Is that drawing in the book similar to this ship? Or does it have some differences?

    Edit: I just looked at an old post of mine at acig.org and maybe the VLS could be for Medvedka-VE, there seems to be a single VLS for 6 Medvedka-VE anti-submarine rocket/torpedo on the project 20382 “Tiger” corvettes. Maybe these are 3 VLSs for 2 missiles each? Although I doubt the position of the middle one, so close to the superstructure and mast…

    in reply to: Russian Navy Status #2063367
    Severodvinsk
    Participant

    “active” or reserve. Well, from a Russian Navy source: What we don’t use in the exercises, but in “active” service, can be seen as scrap. Some of those ships might be salvageable if the money is free, some are beyond repair.
    I think at the moment one or two Sovremennys are under repair, but I don’t know what fleet they belong to (Northern or Pacific, other fleets are unlikely of course) up till now.

    in reply to: Scorpion Class patrol boats.. #2063369
    Severodvinsk
    Participant

    Dionis: Nope
    Garry, if it’s a Russian ship, the name would be Yezh (for Shtil-1) or Uragan (for Shtil) since these are the domestic names. I don’t see any on this ship, but maybe we have a little comunication problem here… I am talking about the last picture I posted. Talwar does have Shtil-1 and Klub, so maybe what you are saying is for the Talwar class? Although Talwar doesn’t have AK-630 and Iglas… Or you are talking about something completely different, since the Russians have many many projects running…
    The Bass Tilt is indeed used for most of their older guns. It’s all the same radar! But mostly it’s used with the AK-630s, two gun mounts per radar and sometimes on small vessels 1 gunmount for the single radar.

    in reply to: Scorpion Class patrol boats.. #2063405
    Severodvinsk
    Participant

    Shtil???? I really don’t see any Shtil/Yezh on it! Nor any guidance radar for it. Note the small waterjet at the stern.
    Anyhow, I checked a report on Russian Navy, updated till August and it says one Skorpion is under construction.

    in reply to: Scorpion Class patrol boats.. #2063407
    Severodvinsk
    Participant

    http://www.sicherheitspolitik-dss.de/person/lemcke/pr20380a.jpg
    Stereguchy of which two are building.

Viewing 15 posts - 31 through 45 (of 514 total)