j*****d
发帖数: 88 | 1 ARJ21 Wing Problems Drive Program Delay
Commercial Aircraft Corp. of China (Comac) now aims to deliver its first
ARJ21 regional jet toward the end of next year, representing another one-
year delay in the program.
It had been aiming to have first deliveries by the end of this year, but
Comac director general airworthiness management department, Zhao Yuerang,
says they aim to finish the flight test program in April and the
supplemental ground tests in June.
“At the end of next year, we will complete (Civil Aviation Administration
of China) type certification and have first delivery,” he says. Zhao was
speaking at the China International Aviation and Aerospace Forum on Nov. 15
in Zhuhai.
The ARJ21 has experienced several delays over the years. Previous delays
were caused by weight issues and difficulties with systems integration.
But the latest delay is due to structural issues. Industry sources say the
ARJ21’s wing broke, during static testing before achieving ultimate
predicted load. The wing’s failure then led the Civil Aviation
Administration of China (CAAC) to limit the aircraft’s flight envelope
during its flight test program.
The sources say the structural issue has since been resolved because Comac
has redesigned the aircraft’s wing to make it stronger. The CAAC has
responded by restoring the flight envelope to its fullest, add the sources.
Chengdu Airlines, in which Comac is a major shareholder, is to be the launch
operator. Chengdu placed an order for 30 ARJ21s after Comac bought into the
airline. The launch operator was originally supposed to be Shandong
Airlines, but it decided to delay taking delivery of the Chinese-built
regional aircraft. Shenzhen Airlines’ Kunpeng Airlines was next in line to
be the launch operator, but it handed that mantle to Chengdu.
The ARJ21-700 is a 90-seat regional jet powered by two, fuselage-mounted
General Electric CF34-10A engines.
China is hoping that once the ARJ21 receives Chinese certification, it will
get FAA certification, making it the first Chinese commercial transport
aircraft to receive U.S. approval. The FAA has agreed in-principle to embark
on a shadow certification, which involves ensuring the CAAC certification
process is in line with FAA standards.
Passing the shadow certification process would make it easier for the ARJ21
to get FAA certification. Having FAA certification would help Comac to sell
the aircraft overseas.
Comac has sold the ARJ21 mostly to Chinese airlines. Its foreign customers
are GE Commercial Aviation Services and the Laos Government. Laos is a
political ally of China. GE is providing the engines for the ARJ21. | s*****r
发帖数: 469 | 2 安全第一，安全第一。高铁现在也没那么大跃进了。
国内高铁还是挺爽的，现在在实验500公里了。 | o**e
发帖数: 563 | 3 飞机？
哪个国家和公司的？
【在 j*****d 的大作中提到】
: ARJ21 Wing Problems Drive Program Delay
: Commercial Aircraft Corp. of China (Comac) now aims to deliver its first
: ARJ21 regional jet toward the end of next year, representing another one-
: year delay in the program.
: It had been aiming to have first deliveries by the end of this year, but
: Comac director general airworthiness management department, Zhao Yuerang,
: says they aim to finish the flight test program in April and the
: supplemental ground tests in June.
: “At the end of next year, we will complete (Civil Aviation Administration
: of China) type certification and have first delivery,” he says. Zhao was
| t*n
发帖数: 14458 | 4 第一句就写了是中国的。。。。
飞机？
哪个国家和公司的？
【在 o**e 的大作中提到】
: 飞机？
: 哪个国家和公司的？
| o**e
发帖数: 563 | 5 还真是，看来认真读贴很重要
谢谢你指明
第一句就写了是中国的。。。。
飞机？
哪个国家和公司的？
【在 t*n 的大作中提到】
: 第一句就写了是中国的。。。。
:
: 飞机？
: 哪个国家和公司的？
| j*****d
发帖数: 88 | 6 ARJ21 Wing Problems Drive Program Delay
Commercial Aircraft Corp. of China (Comac) now aims to deliver its first
ARJ21 regional jet toward the end of next year, representing another one-
year delay in the program.
It had been aiming to have first deliveries by the end of this year, but
Comac director general airworthiness management department, Zhao Yuerang,
says they aim to finish the flight test program in April and the
supplemental ground tests in June.
“At the end of next year, we will complete (Civil Aviation Administration
of China) type certification and have first delivery,” he says. Zhao was
speaking at the China International Aviation and Aerospace Forum on Nov. 15
in Zhuhai.
The ARJ21 has experienced several delays over the years. Previous delays
were caused by weight issues and difficulties with systems integration.
But the latest delay is due to structural issues. Industry sources say the
ARJ21’s wing broke, during static testing before achieving ultimate
predicted load. The wing’s failure then led the Civil Aviation
Administration of China (CAAC) to limit the aircraft’s flight envelope
during its flight test program.
The sources say the structural issue has since been resolved because Comac
has redesigned the aircraft’s wing to make it stronger. The CAAC has
responded by restoring the flight envelope to its fullest, add the sources.
Chengdu Airlines, in which Comac is a major shareholder, is to be the launch
operator. Chengdu placed an order for 30 ARJ21s after Comac bought into the
airline. The launch operator was originally supposed to be Shandong
Airlines, but it decided to delay taking delivery of the Chinese-built
regional aircraft. Shenzhen Airlines’ Kunpeng Airlines was next in line to
be the launch operator, but it handed that mantle to Chengdu.
The ARJ21-700 is a 90-seat regional jet powered by two, fuselage-mounted
General Electric CF34-10A engines.
China is hoping that once the ARJ21 receives Chinese certification, it will
get FAA certification, making it the first Chinese commercial transport
aircraft to receive U.S. approval. The FAA has agreed in-principle to embark
on a shadow certification, which involves ensuring the CAAC certification
process is in line with FAA standards.
Passing the shadow certification process would make it easier for the ARJ21
to get FAA certification. Having FAA certification would help Comac to sell
the aircraft overseas.
Comac has sold the ARJ21 mostly to Chinese airlines. Its foreign customers
are GE Commercial Aviation Services and the Laos Government. Laos is a
political ally of China. GE is providing the engines for the ARJ21. | s*****r
发帖数: 469 | 7 安全第一，安全第一。高铁现在也没那么大跃进了。
国内高铁还是挺爽的，现在在实验500公里了。 | o**e
发帖数: 563 | 8 飞机？
哪个国家和公司的？
【在 j*****d 的大作中提到】
: ARJ21 Wing Problems Drive Program Delay
: Commercial Aircraft Corp. of China (Comac) now aims to deliver its first
: ARJ21 regional jet toward the end of next year, representing another one-
: year delay in the program.
: It had been aiming to have first deliveries by the end of this year, but
: Comac director general airworthiness management department, Zhao Yuerang,
: says they aim to finish the flight test program in April and the
: supplemental ground tests in June.
: “At the end of next year, we will complete (Civil Aviation Administration
: of China) type certification and have first delivery,” he says. Zhao was
| t*n
发帖数: 14458 | 9 第一句就写了是中国的。。。。
飞机？
哪个国家和公司的？
【在 o**e 的大作中提到】
: 飞机？
: 哪个国家和公司的？
| o**e
发帖数: 563 | 10 还真是，看来认真读贴很重要
谢谢你指明
第一句就写了是中国的。。。。
飞机？
哪个国家和公司的？
【在 t*n 的大作中提到】
: 第一句就写了是中国的。。。。
:
: 飞机？
: 哪个国家和公司的？
| d*********e
发帖数: 3835 | 11 the global trend is to move away from the sub 100 seaters, the future of
ARJ20 remains in cloud ... delay or not ... | V****n
发帖数: 651 | 12 是中国的，但大多数部件都不是中国制造的
动力装置 供应商
发动机/短舱 GE
系统 供应商
航电系统 Rockwell Collins
电源系统 Hamilton Sundstrand
APU Hamilton Sundstrand
高升力系统 Hamilton Sundstrand
液压系统 Parker Hannifin Corporation
燃油系统 Parker Hannifin Corporation
空气管理系统 Liebherr Aerospace SAS, Toulouse
起落架系统 Liebherr Aerospace GmbH, Lindenberg
发动机振动监测仪 Vibro-Meter SA
发动机接口控制装置 Vibro-Meter SA
系统 供应商
主飞行控制系统 Honeywell-Parker
驾驶舱控制系统 SAGEM SA
防火系统 Kidde Aerospace
照明系统 Goodrich Hella Aerospace
内装饰系统 FACC
控制板组件 EATON
水/废水系统 Envirovac Inc.
应急撤离系统 Air Cruisers
氧气系统 B/E Aerospace Inc.
驾驶员座椅 Zodiac Sicma Aero Seat
风档玻璃和通风窗 Saint-Gobain-Sully
风档温控和雨刷系统 Rosemount Aerospace INC
风门作动器 MPC Products Corporation
机体 供应商
机翼 西安飞机公司
机头 成都飞机公司
前机身 西飞飞机公司
中机身 西安飞机公司
后机身 沈阳飞机公司
垂尾和方向舵 沈阳飞机公司
挂架 沈阳飞机公司
平尾和升降舵 上海飞机公司
雷达罩 济南特种结构研究所
总装 上海飞机公司
【在 t*n 的大作中提到】
: 第一句就写了是中国的。。。。
:
: 飞机？
: 哪个国家和公司的？
| t*n
发帖数: 14458 | 13 so?
【在 V****n 的大作中提到】
: 是中国的，但大多数部件都不是中国制造的
: 动力装置 供应商
: 发动机/短舱 GE
: 系统 供应商
: 航电系统 Rockwell Collins
: 电源系统 Hamilton Sundstrand
: APU Hamilton Sundstrand
: 高升力系统 Hamilton Sundstrand
: 液压系统 Parker Hannifin Corporation
: 燃油系统 Parker Hannifin Corporation
| d*********e
发帖数: 3835 | 14 no OEM makes their own systems, very rare to do complete design of the major
components, and most unlikely to manufacture all components themselves.
welcome to modern aviation |
|
