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Jinan

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  • in reply to: Russian Navy Thread 2. #2024288
    Jinan
    Participant

    https://www.youtube.com/watch?v=Fmo_3uJD6kA

    Vid from Burevestnik.

    Shows A-190 and the new 57mm mount A-220M firing.

    Nice RoF on the 57mm :love-struck:

    in reply to: Russian Navy Thread 2. #2024302
    Jinan
    Participant

    Those are SSNs, not surface vessels.

    While in SSN and SSBN designs break even point between displacement and propulsion plant doesn’t play a role, in a surface vessel’s design it does.

    Nuclear powered cruisers. Truxton was the baby. The big brother was USS Long Beach (Displacement: 15,540 tons). The last was Virginia class.

    http://upload.wikimedia.org/wikipedia/commons/7/76/C2-CG09Underway.jpg

    in reply to: Navies news from around the world -V #2024307
    Jinan
    Participant

    Iran has got around to sinking that fake aircraft carrier:

    Well I say sink as going on this video the IRGC are making a bit of a hash of it!

    Pics with this story http://news.yahoo.com/irans-guard-begins-military-exercises-near-key-strait-065746514.html

    Hilarious exercise: as if a US carrier woud a) not move, b) have no armament, c) have no air wing and d) have no escorts.

    “American aircraft carriers are very big ammunition depots housing a lot of missiles, rockets, torpedoes and everything else,” the Guard’s navy chief, Adm. Ali Fadavi, said on state television. A direct hit by a missile could set off a large secondary explosion, he added.

    Fadavi last month boasted that his force is capable of sinking American aircraft carriers in the event of war. He previously called carriers easy targets and said Iran naturally wants to sink them.

    SUppose he never read this: http://www.insensitivemunitions.org/history/third-revision-of-the-navy-insensitive-munitions-policy-and-the-u-s-military-standard-defining-the-insensitive-munitions-requirements/ or http://www.onr.navy.mil/en/Media-Center/Fact-Sheets/Combat-Safe-Insensitive-Munitions.aspx

    http://l1.yimg.com/bt/api/res/1.2/uB2J1B4hKMgffP768NurZQ--/YXBwaWQ9eW5ld3M7Zmk9ZmlsbDtoPTY4MztpbD1wbGFuZTtweW9mZj0wO3E9NzU7dz0xMDI0/http://media.zenfs.com/en_us/News/afp.com/Part-NIC-Nic6421666-1-1-0.jpg

    http://l.yimg.com/bt/api/res/1.2/W9Ccdkpif.O0X7GBWb37zQ--/YXBwaWQ9eW5ld3M7Zmk9ZmlsbDtoPTgwMDtpbD1wbGFuZTtweW9mZj0wO3E9NzU7dz0xMjAw/http://media.zenfs.com/en_us/News/ap_webfeeds/09d242ec06bf28096f0f6a70670007a7.jpg

    http://l1.yimg.com/bt/api/res/1.2/WKq6Lg6z1ZuBk6I5pbVJ4A--/YXBwaWQ9eW5ld3M7Zmk9ZmlsbDtoPTgwMDtpbD1wbGFuZTtweW9mZj0wO3E9NzU7dz0xMjAw/http://media.zenfs.com/en_us/News/ap_webfeeds/6f41a16906c829096f0f6a706700e66e.jpg

    in reply to: Indian Navy news thread #2024394
    Jinan
    Participant

    Thats an SU-30 in the clip.

    From what I gather the problem is the MIG-29s not being able to take off again if they miss the wire on one engine

    In the first part, yes. From 45s on its Migs. As was indicated.

    How often do single engine landing occur, relative to total landings/sorties? What are the odds?

    in reply to: Taiwan's Tuo Jiang Class Corvette #2024398
    Jinan
    Participant

    MD-500 Defender
    Length: 23 ft 0 in (7.01 m)
    Rotor diameter: 26 ft 4 in (8.03 m)
    Height: 8 ft 6 in (2.59 m)
    Disc area: 544.63 ft² (50.60 m²)

    Armament
    four TOW anti-tank missiles, or two 7.62mm General Electric M134 Miniguns plus ammuntion, or four General Dynamics Stinger air-to-air missile, or
    Mk 44 or Mk 46 lightweight torpedoes (ASW Version), or two seven-shot rocket pods

    Sea Hawk
    Length: 64 ft 8 in (19.75 m)
    Rotor diameter: 53 ft 8 in (16.35 m)
    Height: 17 ft 2 in (5.2 m)
    Disc area: 2,262 ft² (210 m²)

    in reply to: Taiwan's Tuo Jiang Class Corvette #2024402
    Jinan
    Participant

    [ATTACH=CONFIG]235489[/ATTACH]

    Source: http://slide.mil.news.sina.com.cn/h/slide_8_213_31902.html/d/1#p=1

    It seems like there is a lot of wasted space at the aft of this ship. Why didn’t they make the ship a little longer and use that space for a landing pad? Does anyone know if there are plans to use this space in the future for a SAM system, a towed array sonar system, drones, or anything??

    ROC Navy aviation:
    Sikorsky S-70C(M)-1/2 Thunderhawk (SH-60 Seahawk) United States SAR ASW Naval utility helicopter 19 Out of 10+11 ordered
    Hughes 500MD/ASW Defender United States ASW Naval utility helicopter 9 Out of original 13 ordered

    In any case, the rear deck can serve Vertrep. “Obviously”, if working with a helicopter on deck, it is to work with Defende rather than Sea Hawk. Although I can’t see what the Defender would add (or Sea Hawk, for that matter)

    http://upload.wikimedia.org/wikipedia/commons/4/40/USS_Rodney_M._Davis_%28FFG_60%29_Full.jpg

    http://cfile6.uf.tistory.com/image/222598365459DF25197501

    http://3.bp.blogspot.com/-5OTsfoUjfPE/VImYcgZWNtI/AAAAAAAASyQ/48LX7AXgHYI/s1600/Photos%2Bof%2BTaiwans%2BHsun%2BHai-class%2Bcorvette%2BTuo%2BChiang%2Baka%2BCarrier-killer%2Bsea%2Btrials%2B3.jpg

    http://i1.wp.com/news.usni.org/wp-content/uploads/2014/12/TaiwanCorvette3.jpg?resize=625%2C352

    http://4.bp.blogspot.com/-I5owiDA5hr4/T_cGZ6CbdxI/AAAAAAAAAfY/0oPRR07zmh4/s1600/Hughes500MD.JPG

    in reply to: Indian Navy news thread #2024453
    Jinan
    Participant

    INS Vikramaditya’s operation crippled

    http://nosint.blogspot.co.uk/2015/02/ins-vikramadityas-operation-crippled.html

    http://youtu.be/EsPSdbU0JuY 45 sec. No problems there.

    “The Naval fighter carries out high-speed landing by hooking on to any of the arrester wires stretched across the flight deck. In case it fails to hook, it should take off all over again. If an engine fails during flight, the fighter is forced to do a single-engine landing. But its power to take off just in case the arrester wires are missed is suspect. Therefore, the carrier doesn’t operate too far away from the shores,” a source said.

    The problem is touch and go on 1 engine?

    in reply to: Russian Navy Thread 2. #2024457
    Jinan
    Participant

    Considering the nuclear reaction based fuel propulsion and what one could read about cut off points where it ceases to be more size/weight effective – i’d guesstimate 14 thousand tons is empty displacement.

    Virginia class CGN was under 12k full load displacement. Truxton CGN was under 9k full load.

    in reply to: PLAN News Thread #4 #2024504
    Jinan
    Participant

    The biggest issue is that Sovs and the Chinese ship don’t have the same level of data sharing or communication that the newer Chinese ships have with each other, so they are not really been used up to thei rmaximum capacity. So the sovs will probably get all the Chinese combat system, radar, communication systems and such so they can more effective command & operate with other ships. It will also be better for support later.

    THen again, there is a large correspondence with 052Bs

    in reply to: Indian Navy news thread #2024539
    Jinan
    Participant

    So, what is the rational behind such kind of vessels now?

    Anything could sail across oceans, still there is little a corvette, even if on steroids, can offer nowadays competitive with real frigates.

    Assuming a 2:1 ratio between frigates and corvettes both in terms of acquisition and running costs, there is little a new class of corvettes could add to IN capabilities.

    Apart fresh work for local design bureaus, of course.

    Having a look to the indian coastline, one would wonder where corvettes could be needed in numbers, and why half that number of additional full fledged frigates could not do better.

    Not even mentioning the additional capabilities that could be squeezed in the future in a larger hull.

    hoW WOULD i KNOW?

    in reply to: Indian Navy news thread #2024542
    Jinan
    Participant

    What’s the difference between PDMS and VSHORADS? PDMS might refer to a short range anti FAC/FIAC weapon.

    I think, in this context, PDMS would be someting like Barak or RAM, while vshorads would be something like Gibka or or Simbad RC.

    in reply to: Navies news from around the world -V #2024591
    Jinan
    Participant

    Are Submarines About to Become Obsolete?

    Yeah, just like tanks and manned aircraft.

    in reply to: PLAN News Thread #4 #2024597
    Jinan
    Participant

    The Type 051B is outdated not only in regard of its machines, but especially in regard of its sensors and the air-defence system. Did it still had HQ-7 prior to this refit?

    The already upgraded 052s retained their HQ-7.

    in reply to: PLAN News Thread #4 #2024617
    Jinan
    Participant

    They are already modernizing such a young ship?

    What was inadequate about the initial design?

    It commissioned 1999, so this 6100 ton ship – which post-dates the pair of GtU powered 052’s, of which one was turned from GTus from US to those from Ukraine or their Chinese equivalent, and both of which received upgrades of hard- and soft-kill systems as well as sensors and ectronics – is 15 years old now: time for an MLU.

    Since there remain the 4 Sovremenny’s, Liaoning and the pair of 051Cs that are using steamturbines (not to mention any remaining 051 Luda’s), it would seem unlikely that this ship would be turned to GTu power.

    in reply to: Indian Navy news thread #2024689
    Jinan
    Participant

    So, if they are not requiring any rotary wing facilities, it shall be something along Germany’s K-130 corvette, otherwise Steregushi would be a more adeherent reference.

    At least if they do not expect to pack all that stuff in a hull comparable to the Tarantul itself.

    The question I still ask myself is which real use could IN have in the XXI century for a corvette.

    They have just one littoral scenario, the western one, and a single fregate could do better than two corvettes being more flexible.

    Getting rid of anything not ocean going save the usual coast guard and SAR hulls could prove more sensibile both financially and operationally.

    A Khukri/Kora class replacement: bigger than these, yet smaller than Kamorta class. Ships of these two classes have been on fleet deployments with larger units, e.g. to Singapore, Philippines, Malta even.

Viewing 15 posts - 166 through 180 (of 544 total)