Dhanush the Indian Bofors

Discussion in 'Indian Army' started by arnabmit, Mar 31, 2013.

  1. Bhadra

    Bhadra Defence Professionals Defence Professionals Senior Member

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    Well, if you want to discuss the basics let it be so unless you are testing members of the forum !
    Given the same charge, ranges achieved by 45 caliber gun will be less than 52 caliber - 6975 mm length Vs 8060 mm length. The shell inside 8060 mm barrel will get greater acceleration as also spin. It is 38 km Vs 45 km. Seven km is a considerable range difference.
     
  2. Advaidhya Tiwari

    Advaidhya Tiwari Senior Member Senior Member

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    Athos has 41km range while Dhanush has 38km range. This is less than 10% difference. The reason Athos is light is because its barrel is not made as heavy as ATAGS and hence can withstand lesser pressure. So, despite its longer barrel (16% longer), it is not able to be significantly better than Dhanush. It is not able to match ATAGS in same barrel length due to less pressure handling ability.

    So, merely citing 52 vs 45, it makes little sense without considering other factors too. So, why the insistence on 52 over 45 caliber?
     
  3. Bhadra

    Bhadra Defence Professionals Defence Professionals Senior Member

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    yes normal HE and many other shell will be no problems.
    Is it the barrel or chamber you are discussing ? both have different connotations and effect on range?
     
  4. Advaidhya Tiwari

    Advaidhya Tiwari Senior Member Senior Member

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    I am saying that barrel length and chamber both matter. Athos has longer barrel but not strong enough chamber and hence it is not much better than Dhanush
     
  5. Chinmoy

    Chinmoy Senior Member Senior Member

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    One should really slap these journos hard enough for peddling half and twisted truth.

    ERCA is an independent program for increasing the range of shells by incorporating unconventional techniques like RAMJET and all whereas M777ER is independent program of modifying the current gun to fire shells to a longer range.

    But these journos just mixed up both the programs and peddled a twisted fact.
     
  6. Bhadra

    Bhadra Defence Professionals Defence Professionals Senior Member

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    Yes M777ER was started since after a requirement arose for shells like EXCALIBUR from 155 Gns / Hows to be fired. It is shell improvement centric programme directed at using shells like Course correction fuzed shells, GPS guided shells ram jet, base bleed etc.
    ERCA is directed at gun improvement for range enhancement like increased in length of the barrel.
    Correct me if I am wrong.
     
    Last edited: May 8, 2019
  7. Bhadra

    Bhadra Defence Professionals Defence Professionals Senior Member

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    Please come to the point and do not jump from Ramayana to Mahabharata and vice versa.
    Do you mean Dhanus has larger chamber capacity than ATHOS?
    Stronger chamber has no meaning unless it has more space for propellent charges and expansion of gases.
     
  8. Advaidhya Tiwari

    Advaidhya Tiwari Senior Member Senior Member

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    Yes, I mean that Dhanush ha larger chamber capacity
     
  9. Chinmoy

    Chinmoy Senior Member Senior Member

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    You are right except ERCA, Extended Range Cannon Artillery, is program to design shells to reach range of like 100+ km and M777 ER is the project to modify the gun to fire shells to longer range.

    But no where M777 ER is associated with firing up to range of 100km as reported by the article.
     
  10. Bhadra

    Bhadra Defence Professionals Defence Professionals Senior Member

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    Ok. Thanks..............................
     
  11. Bhadra

    Bhadra Defence Professionals Defence Professionals Senior Member

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    Please give a reference...................
     
  12. Advaidhya Tiwari

    Advaidhya Tiwari Senior Member Senior Member

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    I don't have a reference but that is the only explanation I ca see why 52 Athos fires for 41km while 45 Dhanush fires for 38km despite 16% shorter barrel
     
  13. Bhadra

    Bhadra Defence Professionals Defence Professionals Senior Member

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    I far I know both have 23 ltr chambers and ATGS has 15 ltrs.
     
  14. Advaidhya Tiwari

    Advaidhya Tiwari Senior Member Senior Member

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    How does ATAGS have lower size chamber, that too by 35%
     
  15. Chinmoy

    Chinmoy Senior Member Senior Member

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    Its a typo I think. He might have meant 25 ltrs.
     
  16. Advaidhya Tiwari

    Advaidhya Tiwari Senior Member Senior Member

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    In that case, same chamber size for Dhanush & Athos will raise a question as how a smaller barrel of 45 caliber have same chamber as 52 caliber gun
     
  17. Bhadra

    Bhadra Defence Professionals Defence Professionals Senior Member

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    ATGS has a chamber of 25 ltrs....
    If you are here finding typos and mounting a ridicule on that then go and better fuck yourself rather than trying to prove that a gun archives longer range if it is stronger barrel..
     
  18. Guest

    Guest Regular Member

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    Sir ATAGS has a chamber volume of 27 liters, this was revealed by Baba Kalyani himself.
    The more volume is because It has been designed to fire Nuclear 155mm shells tested in Pokhran in 1998 in addition to other conventional artillery shells of the same caliber.
     
  19. Guest

    Guest Regular Member

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    Also Dhanush has a 25 liter chamber volume, and 45 cal. barrel length. The 52 cal. version will also have same chamber volume.
     
  20. Chinmoy

    Chinmoy Senior Member Senior Member

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    155mm Nuclear Shell??

    CH1RjFEUAAAAkYp.png
     

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