Chinese Aviation Industry

by78 said:

This is a big deal. The JF-22 ultra-high-speed wind tunnel will be completed in 2022. The JF-22 can simulate altitudes of 40 to 100 kilometers. The max flow speed is 10km/sec, equivalent to 30 times the speed of sound. It will be a crucial piece of infrastructure for China's missile and space programs as well as for developing hypersonic vehicles.

Click to expand...

The JF-22 hypersonic wind tunnel has officially passed the acceptance test. The JF-22 can simulate altitudes of 40 to 100 kilometers. The max flow speed is 10km/sec, equivalent to 30 times the speed of sound. It's a crucial piece of infrastructure for China's missile and space programs as well as for developing hypersonic vehicles.

2023年5月30日，国家自然科学基金委员会在力学所怀柔园区组织召开了国家重大科研仪器研制项目“爆轰驱动超高速高焓激波风洞”（JF-22超高速风洞）的结题验收会议。

验收专家组审定项目团队按期、全面完成项目建设内容和研究目标，一致同意通过验收，并评价该风洞在有效实验时间、总温、总压和喷管流场尺寸等综合性能指标方面处于【国际领先水平】！！

JF-22超高速风洞项目是由国家自然科学基金委员会支持，中国科学院力学研究所承担的国家重大科研仪器研制项目，于2018年正式启动，研制周期为5年，项目负责人为姜宗林研究员。姜宗林提出激波反射型正向爆轰驱动方法，把“不能用”的爆轰波头变为“可用”和“好用”，带领团队构建了超高速激波风洞技术体系，成功研制出JF-22超高速风洞。

该风洞是高超声速和超高速领域的一座超大型实验仪器，总长167m，喷管出口2.5m，实验舱直径4m，实验气流速度范围3-10km/s，能够揭示由分子解离主导的复杂介质超高速流动规律，可有力支撑我国天地往返运输系统和超高速飞行器研发，对于推动气动学科发展、提升我国宇航高技术研发能力具有重大意义。JF-22超高速风洞与JF-12复现风洞共同构成唯一覆盖临近空间飞行器全部飞行走廊的地面实验平台。

据悉，JF-22风洞可复现40～100km高空、速度约30倍声速的飞行条件。姜宗林说：“JF-22风洞的目标是助力天地往返系统，若成功可把卫星和航天器发射费用减掉90%。”
Click to expand...

Click to expand...

by78 said:

The JF-22 hypersonic wind tunnel has officially passed the acceptance test. The JF-22 can simulate altitudes of 40 to 100 kilometers. The max flow speed is 10km/sec, equivalent to 30 times the speed of sound. It's a crucial piece of infrastructure for China's missile and space programs as well as for developing hypersonic vehicles.

Click to expand...

Two high-resolution images of the JF-22 hypersonic wind tunnel.

Can anyone ID this manned quadcopter? It was seen at a militia skills competition.

Shenyang finally starts making bidding on their new factory.

Machine translation:

Project scale: Each comprehensive assembly plant of this project is about 750 meters long, 290 meters wide, the lower chord elevation of the plant is about 16 meters, the maximum span of the plant is about 98 meters, and the total construction area is about 280,450 square meters.

Total project investment: about 190,000,000 RMB

Duration requirements: total duration: 741 calendar days (in the construction period, the day of the start is not counted, from the next day, the deadline of the last day of the period is 24:00 hours of the day), of which the design duration is 45 calendar days, construction duration: 696 calendar days. Planned start date: June 20, 2023 (subject to the actual start order), planned to have process equipment installation conditions by March 1, 2025, and the planned completion date is June 30, 2025.

Source:

____________________________________________________________________________________________________________________________________________

The interpretation from :

以单层和双层建筑占地面积和建筑面积来看。

最大跨度98m，宽度290米 这个装配厂房是三排，长度750米，加一起长度就是2km多啊。。

占地21w 建筑面积28w

无论车间跨度，整体产线长度，高度，建筑面积。

和f35那个几乎一致，这是前几年就规划的沈北新区某机装配厂房。

就是没想到这么大。。

Click to expand...

In terms of single-story and double-story building land area and building area.

Maximum span 98m, width 290m length 750m, if three assembly plants are built in a row, the total length of them would be more than 2km.

Landarea 210k sqm Building area of 280k sqm.

Regardless of the workshop span, the overall length of the production line, height, floor space, it is almost the same as the f35 one, which was planned a few years ago for an assembly plant in Shenyang New District.

I didn't expected it to be this big.

Click to expand...

2nd ARJ-21 about to be delivered to TransNusa. Imo, these deliveries are still going a little slow. COMAC needs to show it can actually ramp up production. C919 ramp up schedule is quite ambitious

The second ARJ-21 #PK-TJB# delivered to TransNusa arrived in Jakarta yesterday. According to previous reports of Indonesian media, TransNusa will receive the third ARJ-21 in December this year.

I believe the image shows an AVIC composites workshop.

Airbus to Send Chinese-Made A321 to Wizz in a First for Europe​

is preparing to ship a jetliner built in China to a European customer for the first time, flexing its global production network as it works through constraints on delivering new aircraft to customers.

The A321neo jet, being built for , took its first test flight on June 9, to tracking website FlightRadar24. Airbus said that its Tianjin plant was able to offer a production slot in line with its customer’s expectations and the carrier’s growth plans.

Most of the planes made in Tianjin since its opening in 2008 have gone to Chinese airlines feeding the country’s dramatic expansion of air travel. The plant has occasionally built aircraft for carriers such as Malaysia’s .

A Wizz Air Malta A321neo in Tianjin

to be fair, final assembly represent very low % of the value add on A321NEO. It's just a case where A321 series delays are out of control and the EU airlines need the deliveries sooner.

Until the local A320NEO aircraft start using a lot more Chinese components, this is not that meaningful

tphuang said:

to be fair, final assembly represent very low % of the value add on A321NEO. It's just a case where A321 series delays are out of control and the EU airlines need the deliveries sooner.

Until the local A320NEO aircraft start using a lot more Chinese components, this is not that meaningful

Click to expand...

How is that any different from an Airbus or Boeing plane assembled anywhere else in the world. I mean it is highly unlikely for the Airbuses being assembled in Toulouse to use all French parts.