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Wanshan

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Viewing 15 posts - 2,911 through 2,925 (of 3,544 total)
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  • in reply to: great harrier role idea #2077537
    Wanshan
    Participant

    The company formerly known as McDonnell-Douglas (swallowed by Boeing) was working on a Ground Rescue Insertion Extraction Resupply pod (GRIER) for its AV-8B Harrier II V/STOL attack jet that would carry two men inside, taking advantage of that aircraft’s ability to land and take-off vertically. This pressurized pod on the outer wings like a fuel tank would allow a 4-man LRS or SF special recon team to insert under the cover as being part of an attack jet “strike package”, and/or to dart in and rescue downed pilots faster and with better armament

    in reply to: Information On RIF-M #2077608
    Wanshan
    Participant

    there is also a version of the RIF M system( 30N6 radar / 16 VLS)developed for corvette …..

    what’s the difference between the PODBEREZOVIK ,FREGAT and POZITIV radar ???

    Antenna size, band and power output mainly > different optimizations/functions (long, medium and short range 3d search). Also, made by different companies.

    in reply to: How well does STIR240 cope with SM2 missile? #2077611
    Wanshan
    Participant

    From pdf folder on Thales netherlands website:

    The STIR HP is a medium-to-long range tracking and illumination radar
    system. The system has been designed primarily to control point and
    area defence missile systems, such as Seasparrow, Aspide and
    Standard Missile (SM1 and SM2) types of SAM systems as well as dual
    purpose types of guns.

    STIR HP systems are available in two different director configurations;
    one director having a 1.8 m antenna, and another director with a 2.4 m
    antenna.

    Antenna
    • Antenna type : Cassegrain with monopulse cluster
    • Diameter antenna : 1.8 m or 2.4 m

    Target acquisition and tracking capability up to:
    – 1.8 m antenna version 200 km
    – 2.4 m antenna version 500 km

    http://www.thales-naval.com/pdf/stir%20hp.pdf

    in reply to: Russian Navy : News & Discussion #2077612
    Wanshan
    Participant

    There will be project 20380/82 corvettes plus new destroyers (likely along the lines of improved Udaloy 2). Eventually also additional carrier.

    in reply to: Better CIWS: Palma/Kashtan? AK630? GoalKeeper? or Phalanx? #2077681
    Wanshan
    Participant

    Ah, good point! Missiles tend to be more expensive than cannon rounds, so maybe Goalkeeper is more expensive to purchase but less expensive to operate (i.e. over the entire life cycle). But … not sure what will happen in terms of operating costs when you get guided rounds …

    Mmm, is it the case that an externally powered cannon cannot jam? If so, then that would apply to chaingun as well, wouldnt it? Garry, enlighten me.

    The Israelis protyped a landbased application combining Phalanx mount with Barak SAM on a 6×6 truck. IMHO there is no technical reason why you couldn’t integrate one or more 8 cell VLUs for Barak SAM with one or two Goalkeeper systems. You wouldn’t need to place the VLU near the Goalkeeper gunmount (but you easily could, given the small size of the VLU). Might even work with Sea Wolf or MICA VL. SO, no doubt Phalanx and RAM can be integrated effectively as well. I think such integration wouldn’t work with longer range SAMS like Aspide, Sea Sparrow, ESSM though.

    in reply to: Indian navy – news & discussion #2077756
    Wanshan
    Participant

    rear hull is the give way: SHISHUMAR {HDW 209} CLASS
    http://www.bharat-rakshak.com/NAVY/Images/Shishumar1.jpg

    in reply to: Better CIWS: Palma/Kashtan? AK630? GoalKeeper? or Phalanx? #2077781
    Wanshan
    Participant

    in my opinion there is no good gun based ciws. of course they have advantages but how important is the ability using a ciws for a warning shot? you can use nearly everything for that, a manned maschine gun, automated maschine gun, a medium caliber gun or the ships main gun. of course a bulled for a gun is cheaper than a missile but if a ciws starts firing, the ship is in real danger. the ship is only seconds away from a ashm hit (which will at least be a mission kill). so i won’t take a cheap solution, i will take the best solution.

    a ciws should
    – have a high effectiv range (more space for a second salvo, preventing the ashm wreckage hiting the ship)
    – have a fire and forget mode (so there is no “channels of fire” limit)
    – of course have a high kill probability
    – have a short reaction time

    the range is imho the greatest disadvantage of gun based ciws. today there is no guided bullet and with unguided bullets you have to predict the position of the ashm for the next x seconds befor you fire the bullet. maybe this is not as difficult if the ashm travels straightforward but today a ashm maneuvers unpredictable so the x has to be small enough so the ashm can’t escape the hit or the blast.

    What do you mean “no guided bullet” ? See earlier post on Davide/Dart.
    What do you mean cheap? A gun based CIWS cheap? I think RAM is cheaper than Goalkeeper, for example.

    in reply to: Better CIWS: Palma/Kashtan? AK630? GoalKeeper? or Phalanx? #2077808
    Wanshan
    Participant

    If I was feeling naughty I could get the topic back on topic by saying Phalanx is crap and Kashtan-M is the best. Not to mention going with a cobbled together abomination of frankenstein proportions called SEA-RAM is completely the wrong move… the USN should just buy Kashtan-Ms.

    …but I wont. :diablo:

    You mean to suggest Kashtan M isn’t the best? The horror, the horror….. :dev2:

    in reply to: EMALS Advantages #2077835
    Wanshan
    Participant

    Steam catapults are large, heavy, and operate without feedback control. They impart large transient loads to the airframe and are difficult and time consuming to maintain. The steam catapult is also approaching its operational limit with the present complement of naval aircraft. The inexorable trend towards heavier, faster aircraft will soon result in launch energy requirements that exceed the capability of the steam catapult.

    Electromagnetic launch systems offers higher launch energy capability, as well as substantial improvements in areas other than performance. These include reduced weight, volume, and maintenance; and increased controllability, availability, reliability, and efficiency.

    http://www.globalsecurity.org/military/systems/ship/systems/emals.htm
    http://www.edn.com/article/CA207108.html
    Or just google EMALS and ADVANTAGES

    in reply to: Better CIWS: Palma/Kashtan? AK630? GoalKeeper? or Phalanx? #2077836
    Wanshan
    Participant

    Uhm, can you guys fight it out via PM please? We’re kinda loosing track of the main thread topic: the relative merits of various CIWS.

    in reply to: PLAN Thread (Pics, news, speculations…everything) – 2 #2077872
    Wanshan
    Participant

    That would be Shtil VLS, not HHQ-16. Note the Front Dome illuminators in the model.

    If russian Shtil then forward launcher may be a 3×12 instead of a 4×8.

    Wasn’t HQ-16 a chinese development of Shtil? > could use the same illuminators?

    in reply to: Indian navy – news & discussion #2077906
    Wanshan
    Participant

    why are they buying crappy hawks.. please stop proping BAe up they are a useless dinosaur

    Would you care to explain to us numbskulls what is so crappy about BAe Hawks?

    in reply to: Russian Navy Site #2077911
    Wanshan
    Participant

    yeah it works, oddly enough it came up rather quickly for me and I’m on dial up, thanks for the site mate

    We’re just spoiled users :p

    in reply to: Russian Navy Site #2077943
    Wanshan
    Participant

    Works for me, you just have to be *very* patient 🙂

    Very! (zzzzzzzzzzzzzzzzzzzzzzz)

    in reply to: PLAN Thread (Pics, news, speculations…everything) – 2 #2077946
    Wanshan
    Participant

    PLA’s new 054B FFG?

    Seems a new grade VLS SAM 1st appeared here: HHQ16 is long time rumored to be a replacement for HHQ7 SAM currently installed on 054 FFG.

    HHQ16 could be a Chinese counterpart of Russian SA-N-12 but a VLS version.

    In a brief:

    SAM: HHQ16 6 x 8
    Anti-sub Missile: AS176? 1 x 8
    ASM: YJ83 2 x 4
    CIWS: type730 1 x 2

    THAT WOULD BE A PS JOB. Notice how the rear vl units do not align properly in perspective. HERE IS THE ORIGINAL:

Viewing 15 posts - 2,911 through 2,925 (of 3,544 total)