Indeed it is ... and also visible by being a Batch 03. However I would like to know if a new-built or a refurbished one?
J-10 Thread IV
- Thread starter Jeff Head
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Indeed it is ... and also visible by being a Batch 03. However I would like to know if a new-built or a refurbished one?
Hyperwarp
Captain
All are AL-31FN versions.
Hendrik_2000
Lieutenant General
Henri K write up on the recent test of vectored thrust engine
After multiple research and development projects over the last thirty years, China has finally started flight tests of a vectored thrust nozzle recently on a prototype that seems to be the single-engine J-10C .
A first low resolution picture leaked on Weibo account (equivalent to Twitter China) just before Christmas, showing the back of a J-10C with a reactor with a nozzle very different from that of WS-10 Chinese or AL-31F series 3 of Russian origin, whose shape resembles that of a thrust vectoring nozzle known as the reference J916, revealed in an academic presentation and testing for at least five years on a bench testing ground. The lower part of the vertical stabilizer has taken a different shape from the normal versions, probably to avoid the flame jet.
We also learn that the same aircraft conducted its first flight with this engine in Chengdu, on Monday 25 December, according to several local spotters and lovers.
Note that the presence of anti-spin parachute fasteners on the J-10C in question suggests whether one of the prototypes of the program. It is therefore believed that the device is used as a flying test bed to check the technical condition of the new nozzle thrust vectoring and refine the associated flight control, like the F-16 MATV US, used the 90 'to test the engine AVEN F110-EG-129 .
With a nozzle motor thrust vectoring AVEN is tests on a J-10C prototype
The analysis of the first elements, including academic journals and research suggests that this thrust vectoring nozzle was developed by Shenyang Liming Airline Engine , one of China's leading engine manufacturers and now a subsidiary of the national group Aero Engine Corporation of China (AECC).
This would be a vectored thrust nozzle type axisymmetric three-dimensional, that is to say that the nozzle is rotatable about the longitudinal axis, of the order of about 20 ° maximum. The technical choice is similar to that of Axisymmetric Vectoring Exhaust Nozzle (AVEN) from General Electric and Pitch / Yaw Balance Beam Nozzle (P / Y BBN) Pratt & Whitney, and appears to be different from that of AL-31FP , equipping the Su-30MKI and Su-30MKM for example, the expansion section (secondary nozzle) remained "frozen" and pivotable about a semispherical transition.
The thrust vector in the case of a AVEN nozzle is achieved by the asymmetrical change in positions of the ring A9, which are related secondary shutter and actuated by hydraulic cylinders, which changes the orientation of the nozzle and therefore the jet.
A Chinese TVC control system set in a corner at the last Zhuhai Airshow
ring cylinders A9 of a Chinese TVC
This is a control device of vector nozzle
After multiple research and development projects over the last thirty years, China has finally started flight tests of a vectored thrust nozzle recently on a prototype that seems to be the single-engine J-10C .
A first low resolution picture leaked on Weibo account (equivalent to Twitter China) just before Christmas, showing the back of a J-10C with a reactor with a nozzle very different from that of WS-10 Chinese or AL-31F series 3 of Russian origin, whose shape resembles that of a thrust vectoring nozzle known as the reference J916, revealed in an academic presentation and testing for at least five years on a bench testing ground. The lower part of the vertical stabilizer has taken a different shape from the normal versions, probably to avoid the flame jet.
We also learn that the same aircraft conducted its first flight with this engine in Chengdu, on Monday 25 December, according to several local spotters and lovers.
Note that the presence of anti-spin parachute fasteners on the J-10C in question suggests whether one of the prototypes of the program. It is therefore believed that the device is used as a flying test bed to check the technical condition of the new nozzle thrust vectoring and refine the associated flight control, like the F-16 MATV US, used the 90 'to test the engine AVEN F110-EG-129 .
With a nozzle motor thrust vectoring AVEN is tests on a J-10C prototype
The analysis of the first elements, including academic journals and research suggests that this thrust vectoring nozzle was developed by Shenyang Liming Airline Engine , one of China's leading engine manufacturers and now a subsidiary of the national group Aero Engine Corporation of China (AECC).
This would be a vectored thrust nozzle type axisymmetric three-dimensional, that is to say that the nozzle is rotatable about the longitudinal axis, of the order of about 20 ° maximum. The technical choice is similar to that of Axisymmetric Vectoring Exhaust Nozzle (AVEN) from General Electric and Pitch / Yaw Balance Beam Nozzle (P / Y BBN) Pratt & Whitney, and appears to be different from that of AL-31FP , equipping the Su-30MKI and Su-30MKM for example, the expansion section (secondary nozzle) remained "frozen" and pivotable about a semispherical transition.
The thrust vector in the case of a AVEN nozzle is achieved by the asymmetrical change in positions of the ring A9, which are related secondary shutter and actuated by hydraulic cylinders, which changes the orientation of the nozzle and therefore the jet.
A Chinese TVC control system set in a corner at the last Zhuhai Airshow
ring cylinders A9 of a Chinese TVC
This is a control device of vector nozzle
Hendrik_2000
Lieutenant General
(cont)
The operation of one type of nozzle P / Y BBN Pratt & Whitney
Extract from a research paper Shenyang Liming
Another type of thrust vectoring nozzle, a Su-35S 07 Red
Note that Shenyang Liming and several entities in China, as Beihang University, the NWPU the Nanjing University of Aeronautics and Astronautics and the center CARDC for example, began studying the vectored thrust since at least the 8th Five Year Plan ( 1991-1995).
Different types of nozzle were studied in laboratories, ranging from the most basic such as tri-panels baffles the three-dimensional axisymmetric, through the 2D-CD (Two-Dimensional Convergent-Divergent) rectangular or section the SCFN (Spherical convergent Flap Nozzle) ... etc.
A Chinese 2D CD nozzle on a test stand ground
A wind tunnel model J-8B with baffles panels
An old J-10 model with a steerable nozzle
A Chinese academic study on AVEN "3 rings" used by the European engine EJ200
Knowing that a thrust vectoring nozzle system adds the consequent structural mass of a few hundred kilo for an airplane, and can reduce up to 15% thrust, the Chinese seem to have adopted a very conservative approach so far on the implementation of this device yet beneficial air combat. Priority was initially placed on increasing power of Chinese engines and also their reliability.
But having gained enough experience and reached a certain maturity, including through the WS-10 program over the last 20 years, they finally decided to take the plunge.
The objective would be to equip the last Chinese stealth fighter with the same type of nozzle to vector thrust three-dimensional, while .
Henry K.
The operation of one type of nozzle P / Y BBN Pratt & Whitney
Extract from a research paper Shenyang Liming
Another type of thrust vectoring nozzle, a Su-35S 07 Red
Note that Shenyang Liming and several entities in China, as Beihang University, the NWPU the Nanjing University of Aeronautics and Astronautics and the center CARDC for example, began studying the vectored thrust since at least the 8th Five Year Plan ( 1991-1995).
Different types of nozzle were studied in laboratories, ranging from the most basic such as tri-panels baffles the three-dimensional axisymmetric, through the 2D-CD (Two-Dimensional Convergent-Divergent) rectangular or section the SCFN (Spherical convergent Flap Nozzle) ... etc.
A Chinese 2D CD nozzle on a test stand ground
A wind tunnel model J-8B with baffles panels
An old J-10 model with a steerable nozzle
A Chinese academic study on AVEN "3 rings" used by the European engine EJ200
Knowing that a thrust vectoring nozzle system adds the consequent structural mass of a few hundred kilo for an airplane, and can reduce up to 15% thrust, the Chinese seem to have adopted a very conservative approach so far on the implementation of this device yet beneficial air combat. Priority was initially placed on increasing power of Chinese engines and also their reliability.
But having gained enough experience and reached a certain maturity, including through the WS-10 program over the last 20 years, they finally decided to take the plunge.
The objective would be to equip the last Chinese stealth fighter with the same type of nozzle to vector thrust three-dimensional, while .
Henry K.
Probably a mix-up with Hyperwarp talking about the photos on the last page.
Hendrik_2000
Lieutenant General
Not according to Henri K, the reason is thrust vector add weight and bleed power by 15% so they need bigger engine. That is why they wait so long to get bigger and more reliable engine before attempting the thrust vector nozzle Read the paragraph below from the above article
Knowing that a thrust vectoring nozzle system adds the consequent structural mass of a few hundred kilo for an airplane, and can reduce up to 15% thrust, the Chinese seem to have adopted a very conservative approach so far on the implementation of this device yet beneficial air combat. Priority was initially placed on increasing power of Chinese engines and also their reliability.
But having gained enough experience and reached a certain maturity, including through the WS-10 program over the last 20 years, they finally decided to take the plunge.
The objective would be to equip the last Chinese stealth fighter with the same type of nozzle to vector thrust three-dimensional, while .
Not according to Henri K The reason is adding thrust vector bleed the power by 15% and add weight So you need bigger engine
In that case I don't see the J-20 getting thrust vectoring engines until WS-15 comes out.