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Lessons from BD air Force ordered J7BIG: no army will place an order for brand new air planes as stop gap

Old news: Nigeria ordered 200 MARP from China

WS21 is an UAV engine. So it may not be true

When weather is getting warmmer and wammer, the R index for virus spreading will drop naturally. I do not say it does not have any effect, but it is a mixture effect of vaccine, temperature and isolation. You just do not have a basic training of science and can not understand the importance of...

AZ vaccine is the biggest joke in the vaccine field of last year because AZ said it has better efficiency with lower dose than higher dose which is obviously wrong. This is why FDA does not approve it and ask AZ to redo phase III clinical trial. Moreover it is the vaccine with most side effect...

Let me teach you some science here. You can get antibody from the immunized person， then test the neutralizing efficiency of the mutated strain separated from the infected person, which can be easily distributed through liquid nitrogen. You need to pay 50 thousand dollars a year to learn these...

He is CIA' agent. You even do not know if he is an Indian behind the computer

2021 should be an important year with lots of surpise due to CCP established for 100 years

If nobody is taking it seriously it would not be published on an international scientific magzine. You Trump followers can inject disinfectant to defeat the virus but we scientists will take the vaccine. The Darwin's theory will determine who could survive in this disaster but not your...

Recently heard that WS20 follows CCAR25 rule and can be used on C919，and there is a designation as WS16 which is medium bypass engine based on WS20?

It is said WS20 is the same technology level of CFM56-7 but same thrust as 5b3. this is really good news as if US is mad and do not export Leap1C we can produce aircraft a little better than 737NG with WS20 as stop gap

Finally we do not need import aero engine from Russian anymore，though AI322 and VK2500-03，maybe D136T in future, are still imported from Ukraine

https://www.fliegerfaust.com/pratt-and-whitney--avic-2647531933.html

It will be installed export version of type 517 radar on that position

Check difference of the holes in the back of the ship

I understand now why PN is interested in Type056A. 054A/P has watered down its anti-submarine system

Don‘t waste time on arguing with a person from a nation built on belife but not on fact. There is seldom of nations with its nationality who widely study dialectics and materialism, which make me find it is hard to take with them if they do not work as a scientist. 就像中文论坛上流行的说法，巴机就是信了绿教的阿三 I...

meteror is less maneuveralbe because it use ramjet engine, which can not absorb enough air in high G mobility. The is why US, Russian and China only use ramjet engine in missiles for low mobility targets such as bomber

Don't take it seriously Looser need some spirit drug to make themselves feel well

CJ1000A progress CJ-1000A初始批整机（03台份）遥测系统硬件加工及天线制作调试国际招标公告 Also we now know that WS-16 and WS-21 are UAV engine.