PLA Army's transport helicopters

Discussion in 'Air Force' started by Su-27 Pilot, Sep 12, 2005.

  1. AssassinsMace
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    AssassinsMace Senior Member

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    How cool! I hope it becomes a reality.

    140217exfdihakaheffkaa.png
     
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  2. Bltizo
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    Bltizo Senior Member

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    I personally do not. The design/configuration of the concept (the one closest to the camera) is not very efficient in terms of volume and would be difficult to fold for adapting into a naval variant.

    I expect AVIC to develop a new generation helicopter eventually whether it's a coaxial+pusher propeller or some kind of tilt rotor or they may develop both, but a combined pusher propeller+non tilting rotor is not a very efficient use of aircraft weight and volume in my opinion
     
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  3. TerraN_EmpirE
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    TerraN_EmpirE Tyrant King

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    It's called a Transverse rotor configuration although this one has been modified with the addition of pushers.
    We also see the older propeller nosed chopper model on display.
     
  4. benny
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    benny Just Hatched
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    Swarm*
     
    #44 benny, May 19, 2017
    Last edited by a moderator: May 19, 2017
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  5. Akkarin
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    Akkarin New Member
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    Edit: There is also a discussion about it in the X-plane thread. Maybe it can be merged ?
    Also, does anybody have a source for the image ?


    While the transverse rotor configuration does have disadvantages (higher weight, higher volume), it also has a few advantages that make it usefull.

    Compared to traditional helicopters:

    1. It has no tailrotor, which usually needs up to 10% of your engine power

    2. It has smaller rotors, a push prop and wings. This means that it has a higher maximum speed and is more efficent when flying. (as opposed to hovering.)

    These are exactly the same advantages the US also looks for in the FVL/JMR/JVX programs. These are absolute gamechangers.

    Compared to an S-97/SB>1 concept, which would be much more compact and lighter, it has the following advantages:

    1. Its massively simpler. This means its achievable and in a shorter timeframe and also cheaper, at least initially.

    2. Just like a tiltrotor, it has wings and this an even lower diskload for higher efficency in flight.


    Long term, a coaxial rotor or tiltrotor is probably the better way. But in the meantime a transverse rotor can bring benefits of traditional helicopters and build knowledge for your industry and military.
     
  6. delft
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    delft Senior Member

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    US chose tilt rotor because of a requirement to fold the aircraft for use on aircraft carriers. When such a requirement doesn't exists the transverse rotor configuration might be acceptable. It hasn't yet been successfull, think V-12 and Ka-22 ( https://en.wikipedia.org/wiki/Kamov_Ka-22 ), but better analysis methods might well solve the problems.
     
  7. Hendrik_2000
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    Hendrik_2000 Senior Member

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    China still need a lot of transport helicopter for the airborne brigade. Not sure about the status of new Z18A for the army. Have they start production ? In mean time the work horse of Chinese airborne is still Mi-17. The new version Mi17E can operate in mountainous region as well as dessert condition . It is cheap and good 10-13 million USD per copy . The last order is in 2012. for 52 Mi 17E. No known new order since then. According to Thai defense ministry for the price of 1 Blackhawk you can get 3 Mi 17. Mi 17 proof its worth during Sichuan earthquake. They can easily afford 100 more. At total number of roughly 1200 China is only one quarter of US total number of helicopter

    I though China Lantian helicopter has license agreement with
    Mil helicopter of Moscow. I guess it come to nothing https://en.wikipedia.org/wiki/Sichuan_Lantian_Helicopter_Company_Limited

    China operate roughly 160 Mi -17
    The Russian Helicopter Corporation delivered to China the last of 52 Mi-171E helicopters ordered since 2012. This model can carry up to 37 passengers or four tons of cargo and has engines that are particularly effective under "hot and high" conditions. This is useful for the Chinese, who need equipment that can operate in Tibet (where many areas are at altitudes of over 4,000 meters). China is quite fond of the Mi-17 and the older Mi-8 it is derived from. Currently China operates 160 Mi-171 helicopters. Currently China has about 300 Mi-17/Mi-8 type helicopters

    Here is interesting video about Kazan plant that produced Mi 17



    Here is article about the latest order
    Rosobornexport to supply Mi-171E helicopters to Chinese Air Force

    [​IMG]
    Russian state-arm-exporter Rosoboronexport has signed a contract with Poly Technologies to deliver additional Mil Mi-171E Hip multi-role transport helicopters to the China People's Liberation Army Air Force (PLAAF).

    The agreement, signed in August 2012, follows a previous contract signed between Russian Helicopters and Poly Technologies in December 2009 for the production and supply of 32 Mi-171E helicopter along with training support to the Chinese Air Force for transportation purposes, including operations in highland areas.

    Under the new contract, Rosoboronexport will supply a total of 52 Mi-171Es to help further improve the air force's tactical airlift capabilities.

    The contract value, which was not disclosed by the two companies, is expected to amount between $550m and $660m, according to local media reports.

    Built by Ulan-Ude Aviation Plant (UUAP), the Mi-171E is an export variant of Mil Mi-17 Hip helicopter, and is designed to conduct troop and cargo transport, search and rescue (SAR) and medical evacuation (MEDEVAC) missions in all weather conditions.

    The Chinese versions are integrated with VK-2500-03 engines, SAFIR 5K/G MI auxiliary power units and enhanced transmission systems, on request from PLAAF, to enable operations at higher altitudes including mountainous terrain.

    The helicopter also includes search and rescue equipment for conducting special operations during night and low visibility conditions.

    Mi-171Es are used by the PLAAF for conducting a broad range of military operations, such as transportation of bulky cargo, passengers, geologic exploration, patrolling, fire fighting, and offshore missions.

    The first eight helicopters under the contract will be delivered later this year, while the remaining are scheduled for delivery in 2013 and 2014.

    They even produced ATV to fit in Mi 17
     
    #47 Hendrik_2000, Sep 16, 2017
    Last edited: Sep 16, 2017
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