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