Naval aviation will hit new high with LCA NP-1 maiden flight,Taxi trials on currently

Discussion in 'Indian Navy' started by JAISWAL, Feb 9, 2012.

  1. JAISWAL

    JAISWAL Senior Member Senior Member

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    Tarmak007 -- A bold blog on Indian defence: Naval aviation to hit new high with LCA NP-1 maiden flight | Taxi trials currently underway | Tech challenges almost iorned out
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    Naval LCA undergoes various tests at HAL airport ahead of its much-awaited first flight.
    -By Anantha Krishnan M
    Express News Service
    .
    Bangalore: The naval prototype (NP-1) of India’s Light Combat Aircraft (LCA) is slowly and steadily crossing every hurdle that has come up its way in the last 18 months. With a roll out rivaling even blockbuster movie releases in July 2010 -- the NP-1 -- believed to be the only naval aircraft in the light weight category in the world with aircraft carrier operational capabilities, will be airborne
    soon.

    While its designers at Aeronautical Development Agency (ADA) and its makers at Hindustan Aeronautics Ltd (HAL) are not speaking officially and off the record, sources at the shop-floor who
    tweak technology for NP-1 daily, inform Express that ‘it is a matter of time before NP-1 hits the skies.’ Initially, it was envisaged that the naval aircraft will be a derivative of the Indian Air Force version of the LCA (Tejas). But the peculiar requirements of naval operations coupled with safety norms led to substantial differences in the aircraft structure, resulting in delays.
    “The overwhelming challenge of large structural loads, better over the nose vision has lead to heavier undercarriage and re-design of the front fuselage.
    Commonality was achieved in only few mechanical systems and avionics. The stringent naval requirements and rigorous ground testing of various systems is nearing completion,” say
    sources.
    The modification of flight control laws, cabin pressurization including environment control checks, laser precision alignments and host of associated naval flight critical systems are in its
    final stages. “The landing gear with its high sink rate of 7.1 m/sec arising from ship deck requirement has imposed serious challenge to the
    designer which has now been successfully
    circumvented.
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    The NP-1 has completed its
    ground vibration test (GVT), structural coupling test (SCT) and extensive system integration tests with power plant
    using state-of-the-art facilities,[/color]”
    sources said.
    Fuel management with dump facility for
    emergency recovery on board is a special feature of this aircraft. The heart of the flight control system (FCS), which is a quadruplex redundant digital flight control computer supplemented by LEVCON (leading edge vortex controller) air data computer, is being integrated with auto throttle and arrester hook.
    “The LEVCON functionalities for conventional and ramp take-off is under
    regression checks for final assessment on various simulators prior to its implementation on the aircraft. The arrester hook design for ship-borne operations is yet another unique carrier borne
    feature,”
    sources said.
    The aircraft so far has completed four engine ground runs (EGRs), including three with after burner for entire operational envelope. “The platform is underway for low and high-speed ground handling and flying quality checks to assess the aircraft characteristics prior to its
    maiden flight,”
    sources said.
    When specifically asked about a possible date by
    which NP-1 will finally do what it is meant to be –
    flying – sources said: “It is scheduled to fly this month. Many challenges are new and we are taking them head on.”
     
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  3. JAISWAL

    JAISWAL Senior Member Senior Member

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    mods please move this thread to INDIAN NAVY.
    I mistakenly posted it in airforce section
     
  4. nitesh

    nitesh Mob Control Manager Stars and Ambassadors

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    It seems a total new design to me, sad that IN chief lashed out at LCA
     
  5. JAISWAL

    JAISWAL Senior Member Senior Member

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  6. JAISWAL

    JAISWAL Senior Member Senior Member

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  7. JAISWAL

    JAISWAL Senior Member Senior Member

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    Some more pics.
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  8. JAISWAL

    JAISWAL Senior Member Senior Member

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    Tarmak007 -- A bold blog on Indian defence: Tech leap to future naval aircraft projects with LCA Navy on 'countdown' mode

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    India's self-reliance capabilities in taking up naval aircraft projects in future is sure to get a fillip with the Aeronautical Development Agency (ADA) and Hindustan Aeronautics Limited (HAL) beginning the 'countdown of sort' for the first flight of Light Combat Aircraft (LCA) Naval Prototype (NP-1). The inspiring bit of this project is probably the maturing of a military industrial complex and the technological leap of Indian defence units – both government-owned and private sector.
    The unique requirement of naval aircraft is the complex amalgamation of saline and humid environment of operation, restricted availability of deck run for launch or recovery and high operating load conditions. Such intricate needs call for basic design change to suit the carrier operations leading to strengthening of aircraft structure and landing gear, inclusion of leading edge vortex control (LEVCON) and arrester hook, improved engine, enhanced aerodynamic performance and incorporation of special material.
    The LEVCON surface is fitted at the front tip of the aircraft wing to ensure low landing speed, good controllability and better vision for the pilot. Such a surface is used on state-of-the-art US marine aircraft F-18. Usually, in leading and trailing edges linear actuators are used, however, the LEVCON was a biggest challenge to the designer as it has to be operated by a concealed rotary actuator with aerodynamic profiling of the connecting surface. The rotary actuator was designed in collaboration with foreign vendor.
    “It threw related challenging requirement of testing and certification at a safety factor of 150 percent of maximum working load. The LEVCON test rig was designed in-house along with a dummy test specimen rotary actuator with similar specifications to avoid loss of usable item, thus saving few crores of rupees to the exchequer,” sources told Express.
    The feature of launch and recovery onboard carrier was another herculean assignment to be managed. The flare-less landing with high sink rate of 7.1 m/sec and heavy thumping with engine to full throttle till arrested by deck cable, is akin to a controlled crash of the aircraft on the ship every time it operates. This yields five times of loading on main landing gear as compared to Tejas. Sources say that in horizontal direction, the arrested shock recovery produces axial loads on aircraft structure of the tune of 4.5 g, calling for re-certification of all line replacement units (LRUs), components and associated systems of naval version to ensure fail safe operation repeatedly.
    “The ramp takeoff switch ensures that the aircraft is prepared with pre-defined functionality of each system in ship-borne operational mode. This ensures safe launch at max capable all-up weight with full fuel and weapon stores from a ship ski jump of 14 deg ramp profile, when released from deck hydraulic stopper. Such a dramatic launch imposes harsh loading of nose-landing gear during take-off ski-jump run amounting to five times of the IAF Tejas values. All of a sudden the landing gear is un-loaded at the point of exit of the ramp and allowed to extend to its fullest stroke in a wink of a second,” say sources.
    The take-off and landing logics are integrated in its quadruplex digital redundant flight control system and open architecture computer for efficient interface between the pilot and the aircraft with the aim of easing work-load during launch and recovery phase and fail safe operation.
    The LCA Navy is designed for strict operating conditions and emergency recovery, in that it can bring back weight to landing limits, quickly by jettisoning 1000 kg fuel in three minutes with the help of specially-designed fuel dump system. The testing and certification of unique design features for LCA Navy called for systematic plan of action to create new test facilities and deep study of certification philosophy.
    The ADA has designed and fabricated various types of simulators, including engineer-in-loop, real-time software development and maintenance. The shore-based test facility (SBTF) at Goa with ski-jump launch and arrested recovery similar to aircraft carrier is ready. The arrester hook test facility, LEVCON test rig and landing gear drop test rig are also developed in-house.
    There are more than 100 agencies involved with the LCA-Navy project. They include DRDO, HAL, CSIR, PSUs, private sector and academia, spread all over India, ranging from NAL, CARE, DARE, CVRDE, , DEBEL, LRDE, Midhani, CSIO, TCS, IITs, IISc and Naval Aviation at NHQ
     
  9. sayareakd

    sayareakd Moderator Moderator

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    one question will NLCA be used for anti ship role ???
     
  10. JAISWAL

    JAISWAL Senior Member Senior Member

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    i think yes.
    Thats why they taking this development very seriously.
    And thats the very reason for LCA navy taking so long to develop and testing, to supply navy with a indigenous fighter.
     
  11. nitesh

    nitesh Mob Control Manager Stars and Ambassadors

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  12. nitesh

    nitesh Mob Control Manager Stars and Ambassadors

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    Tarmak007 -- A bold blog on Indian defence: Shore-Based Test Facility nearing completion in Goa | NP-1 set for low-speed taxi trials in Bangalore

     
  13. Armand2REP

    Armand2REP CHINI EXPERT Veteran Member

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    Well, it certainly won't be carrying BrahMos. It can probably get airbourne with a Kh-31 and a couple R-73s.
     
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  14. pmaitra

    pmaitra Moderator Moderator

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    BrahMos is even too large for the MiG-29K, so N-LCA with have smaller anti-ship missiles.
     
  15. Armand2REP

    Armand2REP CHINI EXPERT Veteran Member

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    It can carry a couple Urans on the wing pylons, not much else without a catapult.
     
  16. SPIEZ

    SPIEZ Senior Member Senior Member

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  17. JAISWAL

    JAISWAL Senior Member Senior Member

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    there are nine approved N-LCA
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    Defence panel approves LCA for Indian Navy
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    Source-- Defence panel approves LCA for Indian Navy | idrw.org
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    In a boost to India’s indigenousmaritime combat plane development programme, a top defence panel has approved the limited series production of the Tejas light combat aircraft (LCA) for the Indian Navy’s under-construction indigenous aircraft carrier (IAC).

    The approval came from the Defence Minister A.K. Antony-headed Defence Acquisition Council (DAC) at its meeting last week, a top defence ministry official said.
    “The nod is for production of nine of the LCA-Navy,” the official said.
    The approval comes even as the project was finding the going tough over the plane’s General ElectricF404 engine providing inadequate power — about 80 kiloNewtons — for a carrier-borne fighter.
    Therefore, India’s first home-built carrier-borne combat jet may finally be powered by GE F414 engine that provides 90 kiloNewton thrust to meet the specifications for LCA-Navy.
    The Defence Research and Development Organisation (DRDO) project will see the light of the day soon, with the aircraft going through its first flight this year, followed by the necessary approvals for final operational clearance in the next three-four years, in time for the IAC’s induction.
    The 40,000-tonne IAC is under construction at the Cochin Shipyard, and will carry about 30 combat planes, apart from choppers.
    The LCA-Navy had a significant milestone in its development process with the first successful ground-run of its engine in September last year.
    The Indian Air Force has ordered seven squadrons – about 140 aircraft – of the LCA and its induction is expected to begin next year.
     
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  18. Yusuf

    Yusuf GUARDIAN Administrator

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    Just in: Naval LCA has made a successful first flight..
     
  19. anoop_mig25

    anoop_mig25 Senior Member Senior Member

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    nice pics in thread thanks
     
  20. The Messiah

    The Messiah Bow Before Me! Elite Member

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    any articles ?
     
  21. pmaitra

    pmaitra Moderator Moderator

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    I think someone needs to lash out once in a while. Who knows why they preponed this test flight from July 6th to April 25th?
     

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