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Z-19, the new attack helicopter

This is a discussion on Z-19, the new attack helicopter within the Air Force forums, part of the China Defense & Military category; Originally Posted by Martian 1. By directing the helicopter engine exhaust upwards, it lowers the acoustic signature of the helicopter ...

  1. #31
    Asymptote is offline Banned Idiot
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    Re: 3 advantages of directing helicopter engine exhaust upwards

    Quote Originally Posted by Martian View Post
    1. By directing the helicopter engine exhaust upwards, it lowers the acoustic signature of the helicopter to potential observers on the ground. It's a good design feature for acoustic stealth.

    2. Also, directing the exhaust upwards allows the helicopter blades to diffuse the hot exhaust gases. This is a good method of lowering the infrared signature of the helicopter.

    3. When the helicopter is on the ground, you want the hot exhaust gases directed upwards and away from the ground crew. This is a good safety feature.
    3 and 2 are the same, so you lose!! No tofu for you
    1, I don't get it. How does engine exhaust produce acoustic signature? And the chopper's main rotor is already loud enough it will drone out any other noise anyway.

    Actually, there is one more advantage of that design and it is pretty obvious. If you point the exhaust upward, it obscure/shield the heat source away from being detected on the ground down below by the enemy soldiers. The soldier has to be on a position ABOVE the chopper to be able to target the engine exhaust, by which the exhaust is partially shield by the spinning fan blades anyway and the heat is dispersed quickly by the spinning rotor.
    Last edited by Asymptote; 03-01-2011 at 07:45 AM.

  2. #32
    A.Man is online now Senior Member
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    Re: Z-19, the new attack helicopter


  3. #33
    latenlazy is offline Senior Member
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    Re: 3 advantages of directing helicopter engine exhaust upwards

    Quote Originally Posted by Asymptote View Post
    3 and 2 are the same, so you lose!! No tofu for you
    1, I don't get it. How does engine exhaust produce acoustic signature? And the chopper's main rotor is already loud enough it will drone out any other noise anyway.

    Actually, there is one more advantage of that design and it is pretty obvious. If you point the exhaust upward, it obscure/shield the heat source away from being detected on the ground down below by the enemy soldiers. The soldier has to be on a position ABOVE the chopper to be able to target the engine exhaust, by which the exhaust is partially shield by the spinning fan blades anyway and the heat is dispersed quickly by the spinning rotor.
    Wouldn't the heat exhausted upwards complicate the airflow of the rotors though?
    delft likes this.

  4. #34
    Deino's Avatar
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    Re: Z-19, the new attack helicopter

    Besides, this is the latest photo of the Z-19 !
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    Equation likes this.

  5. #35
    HKSDU is offline Member
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    Re: Z-19, the new attack helicopter

    cheers but it's too small & blurry. where has martian the photo enhancing expert gone to?

  6. #36
    Deino's Avatar
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    Re: Z-19, the new attack helicopter

    Yes ... but I think from these one even Martian can't draw mayne new details ... this is so far the best I have.

    Deino
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  7. #37
    delft is online now Senior Member
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    Re: Z-19, the new attack helicopter

    What's so heavy abaft the rotor mast? I would expect the crew compartment to be heavy because of the armor protection. Then there is the gun under the nose. So what is he carrying further aft?

  8. #38
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    Re: Z-19, the new attack helicopter

    The Z19 doesn't have a chin turret. Probably because of weight issues and making it an armed recon scout instead of a true attack helo in my book.

  9. #39
    MiG-29 is offline Banned Idiot
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    Re: Z-19, the new attack helicopter

    it is a very beautiful helicopter

  10. #40
    Deino's Avatar
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    Re: Z-19, the new attack helicopter

    ... white seems to be the primer !?
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  11. #41
    Sczepan is offline Junior Member
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    Re: Z-19, the new attack helicopter

    isn't it like navy colour?

  12. #42
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    Re: Z-19, the new attack helicopter

    Quote Originally Posted by Sczepan View Post
    isn't it like navy colour?
    IMO it is too light (more white than a PLN-grey) and we know that the Z-10's are alos white in primer !
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  13. #43
    HKSDU is offline Member
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    Re: Z-19, the new attack helicopter

    cn_habs and Equation like this.

  14. #44
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    Re: Z-19, the new attack helicopter

    Does it use an indigenous engine? Would it be the lower-end attack helicopter of choice in the PLA?

  15. #45
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    Re: Z-19, the new attack helicopter

    Quote Originally Posted by cn_habs View Post
    Does it use an indigenous engine? Would it be the lower-end attack helicopter of choice in the PLA?
    2 schools of thoughts here:

    1. Backup for WZ-10 if the project fell through
    2. Lightweight dedicated scout helicopter compliment the WZ-10.

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