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Sikorsky, Boeing Propose X2 Technology Helicopter Design for US Army's JMR FVL

Discussion in 'The Americas' started by brahmos_ii, Mar 4, 2013.

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  1. brahmos_ii

    brahmos_ii Major SENIOR MEMBER

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    Sikorsky Aircraft Corp., a subsidiary of United Technologies, and Boeing will submit a joint proposal to build a demonstrator aircraft - based on Sikorsky's X2 Technology rotorcraft design - for the U.S. Army's Joint Multi-Role (JMR) Technology Demonstrator (TD) Phase 1 program.

    The JMR TD program supports the Army's Future Vertical Lift initiative to deliver the next generation of vertical lift utility and attack aircraft.

    "The Sikorsky and Boeing proposal will demonstrate how X2 Technology, with its counter-rotating coaxial main rotors, pusher propeller, and advanced fly-by-wire system, will deliver efficient 230-knot cruise airspeed, improved hover efficiency, and weight-optimized design in an affordable package," said Samir Mehta, president of Sikorsky Military Systems.

    "By leveraging our proven design, we can offer the Army reduced risk, a 100-knot improvement in speed, a 60 percent improvement in combat radius, and 50 percent better high-hot hover performance."

    "The Sikorsky-Boeing team for JMR TD is truly a team of equals," said Leanne Caret, vice president and general manager of Boeing's Vertical Lift division. "Sikorsky will take the lead role in this JMR TD Phase 1 proposal, and Boeing will take a lead role for Phase 2, the mission systems demonstrator program.

    "Our companies are fully committed to the long-term nature of the Future Vertical Lift initiative, and we will contribute equally in terms of capital, technological capability and risk on our path to meeting the Army's requirements," said Caret.

    Proposals for JMR TD Phase 1 are due to the U.S. Army Aviation Applied Technology Directorate by March 6. The Army is expected to announce its selection of one or more winning bids in late 2013. Demonstrator aircraft are expected to fly in 2017.

    [​IMG]
     
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  2. Sancho

    Sancho Lt. Colonel IDF NewBie

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    http://www.flightglobal.com/news/articles/pictures-bell-unveils-v-280-valor-384517/



    [​IMG]
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  3. Picdelamirand-oil

    Picdelamirand-oil Lt. Colonel MILITARY STRATEGIST

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    A major milestone for Eurocopter’s X3 hybrid helicopter
    A major milestone for Eurocopter?s X3 hybrid helicopter - Eurocopter, an EADS company

    Marignane, December 9, 2010

    Step 1 speed objective of 180 kts is attained ahead of schedule for this innovative rotary-wing aircraft.

    Eurocopter’s X3 high-speed hybrid helicopter demonstrator, which performed its maiden flight on September 6, 2010, has reached on November 29th the program’s Step 1 speed objective: attaining a true airspeed of 180 kts (333 km/hr) in level flight at a reduced level of engine power. This performance was obtained at the DGA Flight Test base in Istres, France.

    In the flight testing performed thus far, the flight envelope has been opened with and without autopilot to validate the basic hybrid demonstrator aircraft’s stability and handling characteristics. The X3 has reached an altitude of 12,500 feet (3,810 meters) and performed maneuvers with left and right turns at bank angles of up to 60 degrees.

    [​IMG]

    The X3 flights to date were performed by Eurocopter test pilot Hervé Jammayrac and flight test engineer Daniel Semioli at the French DGA test facility in Istres. “The X3 has performed extremely well, demonstrating handling and flight qualities that are exactly in line with our ground-based simulator evaluations,†Jammayrac said. “This helicopter is really built for speed, and our test team looks forward to taking the X3 to the next steps of its flight regime.â€

    Having already surpassed the speed of a traditional helicopter, the next milestone for the demonstrator is the Step 2 phase at Eurocopter’s headquarters in Marignane, France, where the X3 will enter a second set of flight tests during which it is expected to reach sustained cruise speeds in excess of 220 kts.

    The X3 utilizes a Eurocopter Dauphin helicopter airframe. It is equipped with two turboshaft engines that power a five-blade main rotor system, along with two propellers installed on short-span fixed wings. This hybrid configuration creates an advanced transportation system that offers the speed of a turboprop-powered aircraft and the full hover flight capabilities of a helicopter. It is tailored to applications where operational costs, flight duration and mission success depend directly on the maximum cruising speed.

    The X3 combines excellent vertical takeoff and landing capabilities with fast cruise speeds of more than 220 kts. Eurocopter envisions a wide range of applications for this concept, including long-distance search and rescue (SAR) missions, coast guard duties, border patrol missions, passenger transportation and inter-city shuttle services. It could also be well-tailored for military missions in Special Forces’ operations, troop transportation, combat SAR and medical evacuation – benefitting from the hybrid aircraft’s combination of higher cruise speeds with excellent vertical takeoff/landing performance.

     
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  4. Picdelamirand-oil

    Picdelamirand-oil Lt. Colonel MILITARY STRATEGIST

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  5. Manmohan Yadav

    Manmohan Yadav Brigadier STAR MEMBER

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    Whats the cost and weight carrying capacity

    better than V-22 i hope !
     
  6. Picdelamirand-oil

    Picdelamirand-oil Lt. Colonel MILITARY STRATEGIST

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    The Idea is to make it cost effective but for the moment it's only a demonstrator of the concept. To launch a real program cost many more and has to be funded by goverment because it will apply first in military.
     
  7. grond

    grond Captain SENIOR MEMBER

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    And for the real thing it would make more sense to look less like a helicopter and more like a plane (more range, greater aoa et all) ... But nice someoneis digging up vintage fantasies...
     
  8. Sancho

    Sancho Lt. Colonel IDF NewBie

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    No none of them are in the class of a V22, the V-280 Valor is basically a Blackhawk class helicopter, the Eurocopter X3 is based on the Panther as a platform, so in the Dhruv class, but they are searching for partners for a medium class version too, where HAL could benefit from.
    They all offer the advantages of high speed, but it will be interesting to see what specs and capabilities will really make the difference at the end. The Sikorsky/Boeing offer will be more cost-effective and easier to maintain than the Valor, but it might have advantages in ceilling and range. Also I think the internal weapon bay for ATGMs could be very interesting, the Sikorsky concepts only showed externap fittings, which will add drag and reduce speed again:

    [​IMG]

    (S97 Raider, in the LUH class)


    The AMV company on the other side, plans to offer a concept that might be closer to the V22:

    [​IMG]

    (rear ramp, more internal space, possibly even to carry smaller vehilces)
     
  9. BMD

    BMD Colonel ELITE MEMBER

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    I had an idea of making a Merlin with wings and an F136 engine in the inner stub of each wing. All rotors removed.
     
  10. Sancho

    Sancho Lt. Colonel IDF NewBie

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    But what's the advantage then? It can't land vertically anymore or? And these NG helicopters will remain helicopters, but with increased performance, more comparable to some planes.
     
  11. Manmohan Yadav

    Manmohan Yadav Brigadier STAR MEMBER

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    Ok then, forget them,

    i will stick to the V-22s :mrgreen:
     
  12. BMD

    BMD Colonel ELITE MEMBER

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    The F136 was Rolls-Royce's contender for the F-35B engine. They generate about 44,000lbf of lift each. 2 Harrier engines might also work.
     
  13. smestarz

    smestarz Lt. Colonel REGISTERED

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    I think most of us are thinking within a box.
    The box of how an helicopter will look or feel,

    Can anyone tell me how the helicopters evolved?
    As everyone knows the Helicopter evolved from Autogyros where the inventor came up with two rotors, one on top to provide the lift and thrust, and another nose rotor engine to give it thrust.
    Thus the advantage of a helicopter over planes was
    1. VTOL
    2. Needs less space, and can take off from any small ground, it does not need expensive runaways,
    3. Can be positioned closer to the battlefield and the numbers can be dispersed
    4. Can be used for short haul heavy lift (Like Mi-26) within and external to the body,

    But if you compare that with plane, the planes are longer hauls, and can carry more weight but they need specialized airports which has the long runaways, the bigger the plane the longer the runaways.

    I think the present thinking is still that of a helicopter, but if the views change to say An aircraft that can take off and land vertically, there might be a lot of designs and with better range and hauling capability and yes, faster speed.
    During the flight most of helicopter engine power is used for lift and less for thrust, but in case of an aeroplane, most is used for thrust with the wings giving it the lift.

    I am of the school of thought where I see the VTOL plane taking over from helicopter. the one advantage of helicopter is that the present designs have their main rotor on central axis thus lift generated is very high, but for aeroplanes with VTOL system it may not be able to provide that high a lift, but surely there is process of evolution.

    Anyone desires to correct my view, please welcome
     
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  14. BMD

    BMD Colonel ELITE MEMBER

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    Spot on. If a plane can provide enough vertical thrust, load carrying ability and range for a given size at reasonable cost then the helicopter is defunct
     
  15. smestarz

    smestarz Lt. Colonel REGISTERED

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    me along with G777 designed a VTOL plane (similar to V-22 but seems much more capable as per SIM TESTING)
    Guess need to evolve the design into heavy and medium categories, where Light-Medium will have multi roles but the heavy category will be only Transport.
     
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