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    Il-76/476 Military Transports

    PapaDragon
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    Post  PapaDragon Wed Mar 03, 2021 2:09 am

    Arrow wrote:
    Rodion_Romanovic wrote:

    The Minister of Defense also said that it is necessary to start production of 20 new and modernized Il-76MD-90A aircraft per year, so that by 2030 their fleet will exceed 250 aircraft.

    In 2030, production will amount to 1/3 of what the USSR produced annually. Incredible collapse in relation to the times of the USSR.

    USSR had 3 times (or more) larger military than Russia
    GarryB
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    Post  GarryB Wed Mar 03, 2021 12:34 pm

    At about 60 tons payload, the new models carry 1/3rd more anyway....
    PhSt
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    Post  PhSt Wed Mar 03, 2021 8:10 pm

    GarryB wrote:At about 60 tons payload, the new models carry 1/3rd more anyway....

    I'm not an engineer or aviation expert, so is an aircraft's carrying capacity based on the power of its engines? With a payload of 60 tons, the new Il-76MD-90A now has a bigger payload capacity than the Chinese Y-20
    Rodion_Romanovic
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    Post  Rodion_Romanovic Wed Mar 03, 2021 8:38 pm

    PhSt wrote:
    GarryB wrote:At about 60 tons payload, the new models carry 1/3rd more anyway....

    I'm not an engineer or aviation expert, so is an aircraft's carrying capacity based on the power of its engines? With a payload of 60 tons, the new Il-76MD-90A now has a bigger payload capacity than the Chinese Y-20
    Both the structure and the airframe pay a role.  

    The chineses built the Y20 with the aim to be a heavy transport plane able to carry  more than 60 tons (I believe I read somewhere 66tons mentioned). However till now it cannot fully fulfill its requirements because the available engines are not powerful enough  (and even the new Chinese engine developed for this aircraft is still not enough).

    The il-476 has instead engines potentially more powerful (and if I am not mistaken they are derated to 14.5 tons of takeoff thrust, against the 16 tons of the Tu204 version and 17.6 tons of the Il96-400 version) but probably is limited by the internal space (lenght, width (and height)) of the cargo hold).

    As an example the Y20 has a cargo hold width of 4m against 3.2m of the Il-76.

    That means that the Il-76MD-90A can carry a maximum heavier payload, but some payloads could be too wide to fit, while they could fit on the Y20.

    Of course it is not only a matter of internal space. The airframe needs to be able to carry an increased load, and I believe several structures were reinforced when going from the baseline il76 to the il-76MD-90A (AKA il-476).

    We discussed this quite a lot in the an124 and on the transport fleet threads.

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    PhSt
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    Post  PhSt Thu Mar 04, 2021 5:39 am

    Il-76/476 Military Transports - Page 11 280707

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    GarryB
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    Post  GarryB Thu Mar 04, 2021 12:25 pm

    Volume is always and issue and strength is too... even rated to 62 tons payload the current IL--476 has limits in terms of both weight and volume... a 3 ton item might simply not fit inside it, while a 62 ton tank might sit in the middle of the cargo bay with 80% of the internal volume unused.

    The design of a new aircraft is generally decided based on the loads it will likely carry... but once you have the aircraft in service obviously you would be bloody stupid to design ground vehicles you might want to move by air power that are too big to fit the aircraft hold space.

    A vehicle that is going to be 70 tons does not need to fit in an Il-76 or any variant of it, so if it is too wide to fit that is OK because it can't carry that weight anyway.

    The smaller the aircraft the more widely it will be used.... odds are the Il-276 will be made in much larger numbers than bigger transport types simply because it is more useful and cheaper.
    PhSt
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    Post  PhSt Sun Mar 07, 2021 6:37 am

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    mnztr

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    Post  mnztr Mon Mar 08, 2021 1:03 am

    I did not realize the MD90A has a new composite wing. This is a huge commitment. Looks like they will spit out quite a few of these. Since they are building so many it makes sense to also go with the IL-106. They can share elements of the supply chain and if they can upgrade it to carry 2 T14 tanks that is the right size.

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    George1
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    Post  George1 Tue Mar 23, 2021 2:51 pm

    Flights of young crews of VTA on IL-76 in the Tver region

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    owais.usmani

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    Post  owais.usmani Fri Apr 16, 2021 4:00 pm

    Roscosmos Il-76 during zero G training maneuvers:

    Il-76/476 Military Transports - Page 11 28329310
    Il-76/476 Military Transports - Page 11 28329210

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