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Nirbhay Cruise Missile

Discussion in 'Indian Military Doctrine' started by Gessler, Dec 22, 2012.

  1. Gessler

    Gessler Lt. Colonel IDF NewBie

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  2. GuardianRED

    GuardianRED Captain FULL MEMBER

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    Blackjay likes this.
  3. GuardianRED

    GuardianRED Captain FULL MEMBER

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    Sorry The pointy top reminded me of

     
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  4. proud_indian

    proud_indian 2nd Lieutant FULL MEMBER

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    yes that is the news



     
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  5. Darshan gohel

    Darshan gohel IDF NewBie

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    nose cone was diff. than previous tests
     
    Last edited: Nov 7, 2017
  6. Angel Eyes

    Angel Eyes 2nd Lieutant FULL MEMBER

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    I've read somewhere that there are multiple variants of Nirbhay including Anti ship and torpedo variant....
     
  7. Agent_47

    Agent_47 Admin - Blog IDF NewBie

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    [​IMG]

    http://www.delhidefencereview.com/2...tests-nirbhay-ground-launched-cruise-missile/
     
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  8. Sathya

    Sathya Lieutenant FULL MEMBER

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    thstd yresterdsy test .. any news abotu todyas ?
     
  9. lca-fan

    lca-fan Major SENIOR MEMBER

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    Why India used a Turbojet engine in latest Nirbhay Cruise missile trial ?
    Published November 8, 2017 | By admin SOURCE: Anand SG / FOR MY TAKE / IDRW.ORG

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    PTAE-7 Turbo jet engine developed by HAL for use on pilotless target aircraft, Lakshya likely used on recent Nirbhay Trial

    In Recent successful test flight of India’s first indigenously designed and developed ‘NIRBHAY’ Long Range Sub-Sonic Cruise Missile achieved the range of 647 km for a total time duration of 50 minutes which was less than what it had covered in its second flight when it covered over 1050 km for a 1-15 minute duration due to which it was widely speculated that drop in performance was largely due to use of Turbojet engine instead of Turbofan engine for the first time . DRDO has not confirmed nor denied use of Turbojet engine instead of a Turbofan engine nor clarified on exact reasons behind the need to use it, but this has not stopped many Defence Analysts from coming up with their own theory why a Turbojet engine was used instead of Turbofan engine used in all previous trials.

    [​IMG]
    Russian supplied NPO Saturn 36MT turbofan engine

    India’s worst kept secret has been that India has been using Russian supplied NPO Saturn 36MT turbofan engine for all previous tests and best two possible reasons why India decided to use older Turbojet engine could be due 1) India might be out of supplied NPO Saturn 36MT turbofan engines and Russians might have hiked prices of them . another reason could be that due to delays in certification of Indigenous Manik Turbofan engine currently under development by GTRE, India might have decided to instead use older Turbojet engine for time being rather than import fresh batch.

    [​IMG]
    GTRE’s Manik Engine going though ground tests

    2) Another theory is that recent flight test largely stressed on validation of the in-flight performance of the missile and its onboard systems like navigation system and software that use of older Turbojet engine didn’t matter for recent trial. Another speculation is that Manik Turbofan engine which reportedly has completed all ground-based testing successfully is going through final weight reduction measures and might be closer to production and will be ready for flight trials soon on next Nibhay trials and that recent tests were done using older Turbojet engine to validate other key parameters instead.

    Use of a turbofan engine in Subsonic cruise missile is quite common and it has been used in many modern Subsonic cruise missiles like American Tomahawk long-range cruise missile and even on Pakistan developed Babur land attack cruise missiles and is widely used on other subsonic cruise missiles. A Turbofan engine is efficient at subsonic speeds and produces less noise along with it also has better fuel efficiency. A turbofan engine is actually a further development of Turbojet engine which was developed to improve their performances in subsonic regime. A Turbojet engine is inefficient at low-speed flight and is extremely noisy when used in subsonic regime. Turbojet engine might not be widely used engines on cruise missiles around the world this days but they are still operational around the world and are still used in many mid-range (<500km) Subsonic cruise missiles like Chinese C-802 Anti-ship Subsonic cruise missiles for example due to low cost of production and high reliability largely to cater to export market . A Turbofan engine like Manik will always remain a preferred choice of the engine which will part of the Production version of Nirbhay Cruise missile when it enters production. Next series of Nirbhay Cruise missile will actually see the use of Manik Turbofan engine which will be a key milestone on long-delayed Nirbhay Cruise missile program.

    http://idrw.org/why-india-used-a-turbojet-engine-in-latest-nirbhay-cruise-missile-trial/#more-153054 .
     
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  10. Sancho

    Sancho Lt. Colonel IDF NewBie

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    http://ajaishukla.blogspot.de/2017/11/nirbhay-cruise-missile-passes-crucial.html?m=1
     
  11. Sathya

    Sathya Lieutenant FULL MEMBER

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    What happened to serial tests ? Any issues in the first test ?
     
  12. lca-fan

    lca-fan Major SENIOR MEMBER

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    Nirbhay missile: Why India’s first indigenous long range sub-sonic cruise missile is special
    Monday, November 13, 2017 By: Financial Express Source Link: CLICK HERE

    [​IMG]

    Nirbhay missile is India's first indigenously designed and developed long range sub-sonic cruise missile! Designed and made by DRDO (Defence Research & Development Organisation), the missile was recently test fired successfully. "The flight test achieved all the mission objectives completely from lift-off till the final splash," said a Ministry of Defence release. The Nirbhay missile can be deployed from multiple platforms, says DRDO. We take a look at some key facts about the Nirbhay missile and why its important for the country:

    According to DRDO, Nirbhay missile is a 1000-km class cruise missile that has the capability to strike "deep" into the enemy's territory. The missile has the capability to loiter and cruise at 0.7 Mach, at altitudes as low as 100 metres, says DRDO.

    After the launch of the missile, its booster motor gets separated. The missile's turbofan engine then gets switched on for further propulsion. The booster motor is required for the initial launch.

    The "fully autonomous" missile is crucial to India's defence and strike capabilities. This is because, cruising at low altitudes, it can avoid detection, says DRDO.

    "The guidance, control and navigation system of the missile is configured around the indigenously designed Ring Laser Gyroscope (RLG) and MEMS based Inertial Navigation System (INS) along with GPS system," says DRDO.

    For the recent trial, the missile cruised for a total time duration of 50 minutes, achieving a range of 647 km.

    This was not the first trial of the homegrown missile. The maiden launch in 2013 had been a partial success. Since then the Nirbhay missile has tasted both success and failure in various trials. Its successful development would provide a definite boost not only to the armed forces, but also the indigenous defence industry and India's capability to design and develop such lethal weapons.

    With Nirbhay missile, India joins the select league of nations that possess the ability to make sub-sonic cruise missiles.
    http://www.defencenews.in/article/N...ge-sub-sonic-cruise-missile-is-special-444484
     
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