antonius123
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Theer was a claim that J-31 can't be a copy of F-35 because its two engine. Thats exactly like saying that F-20 cant be a copy of F-5 because its 1 engine.
U miss my point.
F20 is a further development of F5, so it is not a copy at all, therefore F20 vs F5 is not the same case with J-31 vs F35
For northrop, they have their own patent, technology, design, knowhow of F5, then they should have no big deal to develop F5 double engine into single engine F20.
Copy mean : almost no original design.
If J-31 has no original design as it is a copy of F35, the shape / design should demonstrate resemblance.
If J-31 has different design, mean it is not copy anymore of F35.
If u add more engine, you need to re engineer the planform, center of gravity, aerodynamic etc. Adding by changing here and there, it cannot be said copy anymore. And that is assuming that J-31 is developed from F35, not from scratch.
Sir,
Modern or not---is as relative to engineering design as day is to night. China had no experience in the development of fighter aircraft. It got the fighter aircraft from Russia and made some modification here and there---and they were not on the scale to call development.
That is totally rubish and ignorant.
JF17, J-31 and J20 is other example of clear Chinese original design/development, resemble none.
In fact improving aircraft (J-6, J-11B) involve development also, and you will learn development through it. J11B is a different a/c compared to SU27, eventhough the shape is similar. The point is: if you can make a different a/c - you already have capability in developing the a/c.
Development happened when the Israelis gave them the design of the Levi for the J 10----when the Russians and ukranian engineers joined the Chinese aircraft industry and when boeing gave them the wing..
That is a rubbish accusation.
There is no evidence that Israel give Levi design to China.
The accusation that you read in the internet is simply prejudice, as western people think China can only do copy paste.
By comparing the LAVI vs J10 Shape, you should be able to see the major different in the design between them. Therefore without evidence, we can conclude that J10 is NOT a copy of LAVI design. The wing shape, dimension, etc already show the difference.
Accusing J10 as copy of LAVI is simply the same as accussing Airbus A330 is a copy of Boeing 737 just because the similarity of the planform
On a world scale---you call development when you design an F 15 or the F 16---the MIG 29's or the SU 27's---the planes that take your air force to the next plateau from the Phantoms and mig 21's and su25's---.
None of the older chinese aircraft took them to any higher plateau except keep them in the 60's technology. So---where was the development.
That rubbish.
You said none, but in fact J-8, J-9, JH7, JF17, J-10, J-20, J-31 already abundant example of milestone in China Aviation design, development/engineering.
Dont forget that west also accused USSR's Mig29 and SU27 as a copy of US F-15 Eagle.
Russia and china have gone different ways seeking stealth---where the Russians have depended on their engineers to do the job---the Chinese have utilized other assets to get to the top.
Thats totally rubish.
Do you still remember how west accused USSR's Mig29 and SU27 as a copy of US F-15 Eagle? and there is long list like: Tu144 (copy of Concorde), Blackjack (copy of B1), Buran (copy of challenger)? etc etc.
Do you think USSR never involve in technology stealing/espionage?
Do you know how many engineer that China has now, compared to Russian?
What make you think China the country that produce the largest number of patent, cannot design/develop advance plane? LOL
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