Dismiss Notice
Welcome to IDF- Indian Defence Forum , register for free to join this friendly community of defence enthusiastic from around the world. Make your opinion heard and appreciated.

Top Five Japanese Weapons on which India could like to get it hands on

Discussion in 'International Relations' started by lca-fan, May 11, 2017.

  1. NKVD

    NKVD Lieutenant FULL MEMBER

    Joined:
    Oct 26, 2016
    Messages:
    407
    Likes Received:
    582
    Country Flag:
    India
    Ankit Kumar 001 likes this.
  2. Luttapi

    Luttapi 2nd Lieutant FULL MEMBER

    Joined:
    May 2, 2017
    Messages:
    115
    Likes Received:
    122
    Country Flag:
    India
    OK source. Try Nationalinterest.org>blog>the buzz by Kyle Mizokami. Why China fears Japan's super stealth. U can also Google wikipedia. Bye.
     
  3. Ankit Kumar 001

    Ankit Kumar 001 Major Technical Analyst

    Joined:
    Oct 13, 2016
    Messages:
    2,592
    Likes Received:
    4,852
    Country Flag:
    India
    Wikipedia uses the same source as posted by @Fox before.

    As for the article , re read the article. To make it easy, I post the sentence.

    " Armament consists of Type 89 heavyweight homing torpedoes with a range of twenty-seven nautical miles and a maximum operating depth of 2,952 feet. "

    The "2952 feet " depth is not about the submarine, but the torpedo.
     
  4. Luttapi

    Luttapi 2nd Lieutant FULL MEMBER

    Joined:
    May 2, 2017
    Messages:
    115
    Likes Received:
    122
    Country Flag:
    India
    The paragraph above my dear. Please read fully and convert feet to metres. It says about diving to 2152 feet.I have not entered a Japanese sub neither have u I believe. Good night.
     
  5. Fox

    Fox Supreme Overlord FULL MEMBER

    Joined:
    Apr 26, 2017
    Messages:
    314
    Likes Received:
    919
    Country Flag:
    Norway
    Not impossible, because the Soviet Mike Class did meet those performance perimeters.

    http://www.hisutton.com/Russian SIERRA Class Titanium-hulled attack sub.html

    The difference between it and the Soryu Class of Japan is that Mike was Titanium hulled, which like with Alpha's extreme speed, allowed it to exceed the performance of steel-hulled submarines.

    https://fas.org/man/dod-101/sys/ship/deep.htm

    A submarine's hull is normally constructed of steel, or exceptionally of titanium. Special High Yield [HY] steel alloys have been developed to increase the diving depth of submarines, although the improved depth performance of these alloys imposes a price of increased fabrication challenges. These special steels are denominated by their yield stress in thousands of pounds per square inch -- thus HY-80 steel has a yield stress of 80,000 pounds per square inch [corresponding to a depth of 1,800 feet], HY-100 a a yield stress of 100,000 pounds per square inch [corresponding to a depth of 2,250 feet], and so on.

    • During World War II, American fleet submarines normally operated at a depth of 200 feet, though in emergencies they would dive to a depth of 400 feet.
    • Post-War American submarines, both conventional and nuclear, had improved designs and were constructed of improved materials [the equivalent of "HY-42"]. These boats had normal operating depths of some 700 feet, and a crush depth of 1100 feet.
    • The Thresher, the first American submarine constructed of HY-80 steel, reportedly had a normal operating depth of 1,300 feet, roughly two-thirds the crush depth limit imposed by the HY-80 steel.
    • The Seawolf, the first American submarine constructed of HY-100 steel, is officially claimed by the Navy to have a normal operating depth of "greater than 800 feet," but based on the reported operating depth of the Thresher, it may be assumed that the normaly operating depth of the Seawolf is roughly double the official figure.
    • The Soviet Alfa submarines, constructed of titanium, reportedly had an operating depth of nearly 4,000 feet.
    [​IMG]

    http://gentleseas.blogspot.com/2015/01/japan-offer-to-australia-soryu.html

    Soryu is believed to be constructed of HY-156 high-tensile steel. Assuming a linear progression from HY-80 to HY-100 and subsequently HY-156, that put Soryu's operating depth at 600 meters (2000 feet) and its crush depth several hundred meters beyond that, at around roughly 900 meters.

    A 600 meter operating depth is still an impressive bit of performance, but it's far short of the 1000 meter operating depth of the Mike Class, which had a crush depth of a mammoth 1500 meters!

    [​IMG]

    Mike was ironically sunk not from exceeding its crush depth, but from a fire in the engine room. She now sits 1600 meters upon the bottom of the Barents Sea.

    Mike was an 8000 ton displacement, Titanium-hulled nuclear submarine. Quite a bit different from Soryu.
     
    Luttapi and Ankit Kumar 001 like this.
  6. Ankit Kumar 001

    Ankit Kumar 001 Major Technical Analyst

    Joined:
    Oct 13, 2016
    Messages:
    2,592
    Likes Received:
    4,852
    Country Flag:
    India
    2152 Feet is around 650 meters , not 900 meters as you claimed.
     
  7. zebra7

    zebra7 Captain FULL MEMBER

    Joined:
    Nov 3, 2016
    Messages:
    1,176
    Likes Received:
    1,199
    Country Flag:
    India
    Janab here is the 5 Technology which we needs from Japan.

    1. Turbofan Engine tech. for military and civilian applications

    2. High Precision tools and machines.

    3. Material Science knowledge of various Alloys and Compostite which they developed for the F2 and X-2 and naval ship and submarine grade Steel.

    4. IR and Visual Sensor tech., with high quality lens and sensors manufacturing tech.

    5. Radar tech.


    Rest Assure we Indians are very Jugadoo
     

Share This Page