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HAL Indian Multirole Helicopter (IMRH)

Discussion in 'Indian Air Force' started by Agent_47, Feb 6, 2017.

  1. Ripcord322

    Ripcord322 Lieutenant FULL MEMBER

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    500 KM !? Sea Level Range !?

    What are the Army Requirements...!?
     
    Last edited: Feb 26, 2017
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  2. Abingdonboy

    Abingdonboy Captain Technical Analyst

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    From PKS:

    1) Actually, the HTSE-1200 is being developed for a slightly stretched version of the ALH that will see the ALH morphe from the existing 5.5-tonne MRH to a 7.5-tonne MRH. In fact, you may recall that back in 2005 HAL, CSIR & a few DRDO labs were trying to develop a fly-by-light flight-control system & it was all to do with this envisaged 7.5-tonne MRH version of the ALH that will have greater internal volume as well as more internal fuel for increased flight endurance


    @Agent_47 remember we had discussed this


    [​IMG]



    [​IMG]


    A "stretched" ALH design in the 7.5-9 ton range would be an excellent addition to HAL's portfolio.



    Incidentally, Boeing are pitching the AW139 (MH-139) to the USAF to replace their UH-1N.

    [​IMG]

    There are >900 AW139s in service (or on order) around the world, there is a HUGE market for this class of helo.

    @Gessler @PARIKRAMA @Hellfire @MilSpec @nair @randomradio @GuardianRED @ni8mare @Echo_419 @Grevion @Ankit Kumar 001
     
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  3. Gessler

    Gessler Mod Staff Member MODERATOR

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    If HAL shows the speed of development as they did with LUH, we should be seeing a first flight of this extended Dhruv within 2025.

    I would have said HAL should have done this long ago...but honestly, till now they had a lot on their plate even in the chopper department alone...

    • Continuous development of ALH (Mk.2, 3, 4)
    • Rudra ALH-WSI
    • LCH
    • LUH

    With LUH taking to the skies and most of LCH development work done (limited series production about to begin), the time is right to focus the dev dept. on X-Dhruv and IMRH. HAL has been known to have upto 3 different helo projects in development simultaneously (no mean feat in of itself) so this shouldn't be a problem. And the fact that we'll be using the indigenous HTSE-1200 for this X-Dhruv is a good news to hear. Waiting for something solid to emerge about this turboshaft in the future, I guess we can see a test flight of the HTSE on board an ALH within 2020.

    [​IMG]
     
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  4. GuardianRED

    GuardianRED Lieutenant FULL MEMBER

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    Do like this concept

    BUT , keeping our needs first ! Does the Indian Armed forces have a requirement for 7.5ton MRH?? and do we have an existing 7.5ton frame already in use?
     
  5. Agent_47

    Agent_47 Admin - Blog Staff Member MODERATOR

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    Touchwood :angel:
    But this is PKS, he could be making up this story based on HTSE power rating and old illustrations. It is logical though.
     
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  6. Agent_47

    Agent_47 Admin - Blog Staff Member MODERATOR

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    No, it don't. It's main requirements are for 9-10 ton and 12-13 ton.
    But, this is about HAL building a good helicopter portfolio with minimum effort and capturing market in coming decades.
     
  7. Abingdonboy

    Abingdonboy Captain Technical Analyst

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    Currently there isn't any overt sign the armed forces are looking for a 7.5-9 ton helo but as they say build it and they will come, I'm sure when/if this is developed there will be sufficent interest from multiple services, for many roles it is more suited than far the IMRH (a heavy medium class helo). And the new design will fit nicely within HAL's portfolio otherwise there would be quite the jump from the 5.5t ALH to the 12-13t IMRH, quite the glaring gap.

    To be honest, I think the 7.5-9t "stretched" ALH makes more sense for, say, the IA than the current
    True bro and in fact HAL may embark on this new project just to keep their, now, highly capalble development team occupied. HAL seem very concious these days of keeping their capacity (whether that be on the production or the development side) fully utilised.

    In not very long the R&D efforts of the LUH and LCH will largely be maxed out and only iterative development would need to go on (as in ALH MK.1-4) but that requires far less resources and focus so there will be capacity becoming freed as a result and the IMRH is the only new project HAL's rotary development wing has proposed.

    5.5t ALH in the transport role. The ALH always struck me as a bit of an outlier, it doesn't really fit anywhere- it is not a light helo as its designation would suggest, nor is it a medium class helo really either. It can't be used for the RSH roles of the LUH nor does it have the range/endurance of a true medium class helo to be used in maritime/shore based roles such as SAR or interdiction. The "stretched" ALH design would address all of these issues.

    For this reason, I think a "stretched" ALH design could have enourmous potential for the ICG and IN (to a lesser extent as they hand over more domestic roles to the ICG) backing up heavier helos like the H225M/EC-725
    True true, but it does make me wonder about the IMRH, based on the HTSE-1200's power ratings it will be insufficent for the IMRH in a twin engine configuration. Unless HAL are willing to go the AW-101 route and have three engines, they will need to look to a more powerful engine for the IMRH.

    Really, the "stretched" 7.5-9t ALH will be a walk in the park compared to the IMRH, it will be almost identical to existing designs and will even use their own in-house engine. The IMRH is a different beast all together and quite a leap for them.

    True bro and in fact HAL may embark on this new project just to keep their, now, highly capalble development team occupied. HAL seem very concious these days of keeping their capacity (whether that be on the production or the development side) fully utilised.

    In not very long the R&D efforts of the LUH and LCH will largely be maxed out and only iterative development would need to go on (as in ALH MK.1-4) but that requires far less resources and focus so there will be capacity becoming freed as a result and the IMRH is the only new project HAL's rotary development wing has proposed.
     
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