Xi'an Y-20 Cargo Transport pics [6/7] - first operational Y-20 arrives on the tarmac. Chinese Internet.jpg (1/1)

[Miloch]

*

[Byker]

"Stormin' Norman" wrote in message
...
>
> Interesting they did not incorporate winglets. Also interesting that the
> PLAA is requesting ~1000 Y-20 aircraft. That is a hell of a lot of
> airlift capability.

I doubt if even a fraction are delivered

[Miloch]

In article >, Stormin' Norman says...
>
>On 5 Aug 2018 07:31:15 -0700, Miloch >
>wrote:
>
>Interesting they did not incorporate winglets. Also interesting that
>the PLAA is requesting ~1000 Y-20 aircraft. That is a hell of a lot
>of airlift capability.
>
>

The most interesting part was from the original article:

"Propulsion...

The Y-20 is powered by four 12-ton thrust Soloviev D-30KP-2 engines, and all
early production units are likely to be similarly powered. The Chinese intend to
replace the D-30 with the 14-ton thrust WS-20, which is required for the Y-20 to
achieve its maximum cargo capacity of 66 tons. The Shenyang WS-20 is derived
from the core of the Shenyang WS-10A, an indigenous Chinese turbofan engine for
fighter aircraft.

In 2013, Shenyang Engine Design and Research Institute was reportedly developing
the SF-A, a 28700-pound thrust engine, for the Y-20 and the Comac C919. The SF-A
is derived from the core of the WS-15. Compared to the WS-20, the SF-A is a
conservative design that does not seek to match the technology of more modern
engines.

In late 2017, it is revealed that domestic Chinese turbofan WS-18 has begun
flight test on Y-20. Compared with Russian Soloviev D-30, WS-18 is 300 kg
lighter, weighing at 2000 kg; with thrust increased from 12.5 ton of D-30 to
13.2 ton; and fuel consumption of WS-18 is also reduced in comparison to D-30,
and the mean time between overhaul of WS-18 is 3000 hours. However, because the
increase in thrust is not significant in comparison to D-30, WS-18 is like to be
a stopgap measure before WS-20 is ready.

-----

For all their advancements in aviation, they still lag behind in engine tech and
are using Russian turbofans.




*

[Byker]

"Stormin' Norman" wrote in message
...
>
> The PRC is reportedly buying the Y-20 for $160 mil U.S. each and we were
> spending $330 mil U.S. on the C-17, if one can believe what the PRC
> reports and what this site is publishing.

Cheap labor, of course...

[Bob (not my real pseudonym)[_2_]]

On Sun, 05 Aug 2018 11:45:55 -0700, Stormin' Norman
> wrote:

>On 5 Aug 2018 10:25:52 -0700, Miloch >
>wrote:
>
>>In article >, Stormin' Norman says...
>>>
>>>On 5 Aug 2018 07:31:15 -0700, Miloch >
>>>wrote:
>>>
>>>Interesting they did not incorporate winglets. Also interesting that
>>>the PLAA is requesting ~1000 Y-20 aircraft. That is a hell of a lot
>>>of airlift capability.
>>>
>>>
>>
>>The most interesting part was from the original article:
>>
>>"Propulsion...
>>
>>The Y-20 is powered by four 12-ton thrust Soloviev D-30KP-2 engines, and all
>>early production units are likely to be similarly powered. The Chinese intend to
>>replace the D-30 with the 14-ton thrust WS-20, which is required for the Y-20 to
>>achieve its maximum cargo capacity of 66 tons. The Shenyang WS-20 is derived
>>from the core of the Shenyang WS-10A, an indigenous Chinese turbofan engine for
>>fighter aircraft.
>>
>>In 2013, Shenyang Engine Design and Research Institute was reportedly developing
>>the SF-A, a 28700-pound thrust engine, for the Y-20 and the Comac C919. The SF-A
>>is derived from the core of the WS-15. Compared to the WS-20, the SF-A is a
>>conservative design that does not seek to match the technology of more modern
>>engines.
>>
>>In late 2017, it is revealed that domestic Chinese turbofan WS-18 has begun
>>flight test on Y-20. Compared with Russian Soloviev D-30, WS-18 is 300 kg
>>lighter, weighing at 2000 kg; with thrust increased from 12.5 ton of D-30 to
>>13.2 ton; and fuel consumption of WS-18 is also reduced in comparison to D-30,
>>and the mean time between overhaul of WS-18 is 3000 hours. However, because the
>>increase in thrust is not significant in comparison to D-30, WS-18 is like to be
>>a stopgap measure before WS-20 is ready.
>>
>>-----
>>
>>For all their advancements in aviation, they still lag behind in engine tech and
>>are using Russian turbofans.
>>
>
>Considering where they were 75 years ago, they are making tremendous
>strides and I would never underestimate them.

No small part due to China's prolific military and industrial
espionage programs.