J-20 5th Gen Fighter Thread V
- Thread starter Deino
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I rather doubt there are that many substantive changes from 2015, would you care to elaborate?
lcloo
Captain
OK let me see if I can interpret correctly,
1) DSI has been coated with special material, same colour as radar dome, or may have installed radar equipment
2) Cockpit Canopy inner frame has been painted in black, original paint was white
3) Side weapon bay edges added black strip, may be wave absorption material sealing the joints, to increase stealth.
4) The protruding part at the upper side of the landing gear compartment has been changed in shape
5) The area surrounding canted tail fin formation light has been changed to white paint, from darker colour
6) The ventral fins paint has been changed, may be due to changed of material.
7) Engine is now wrapped in greater degree, less exposed.
8) Inner side of the "tail sting" has heat resistance coating.
Ok, the changes may not be all substantial, some very minor no doubt. Pls note that this observation was from the original poster on Chinese internet.
Personally, I don't think there will be any major changes to be expected in future, other than the engine. Basically, it is more like fine tuning in further testing until they are completely satisfied before proceeding to batch/serial/mass production.
最新一架歼20战机于9月18日成功首飞，该飞机亮相不久就参加首飞说明国产歼20的制造已经相当成熟。此外新一架飞机在诸多细节上进行了改动。
DSI进气道采用特殊涂料，颜色与雷达罩使用的特殊涂料相似，或是利用该空间加装了雷达设备。座舱内框改为黑漆，原为白漆。侧弹舱周边加了一圈黑边，或是采用了柔性吸波材料密封接口，增强隐身能力。机轮舱上方的凸起改为对称结构。
垂尾编队灯周围白漆，原为深色漆。腹鳍刷漆变化，可能材质有变。发动机被包裹程度更高，外露面积减少。尾撑内侧有防高温涂层。
1) DSI has been coated with special material, same colour as radar dome, or may have installed radar equipment
2) Cockpit Canopy inner frame has been painted in black, original paint was white
3) Side weapon bay edges added black strip, may be wave absorption material sealing the joints, to increase stealth.
4) The protruding part at the upper side of the landing gear compartment has been changed in shape
5) The area surrounding canted tail fin formation light has been changed to white paint, from darker colour
6) The ventral fins paint has been changed, may be due to changed of material.
7) Engine is now wrapped in greater degree, less exposed.
8) Inner side of the "tail sting" has heat resistance coating.
Ok, the changes may not be all substantial, some very minor no doubt. Pls note that this observation was from the original poster on Chinese internet.
Personally, I don't think there will be any major changes to be expected in future, other than the engine. Basically, it is more like fine tuning in further testing until they are completely satisfied before proceeding to batch/serial/mass production.
最新一架歼20战机于9月18日成功首飞，该飞机亮相不久就参加首飞说明国产歼20的制造已经相当成熟。此外新一架飞机在诸多细节上进行了改动。
DSI进气道采用特殊涂料，颜色与雷达罩使用的特殊涂料相似，或是利用该空间加装了雷达设备。座舱内框改为黑漆，原为白漆。侧弹舱周边加了一圈黑边，或是采用了柔性吸波材料密封接口，增强隐身能力。机轮舱上方的凸起改为对称结构。
垂尾编队灯周围白漆，原为深色漆。腹鳍刷漆变化，可能材质有变。发动机被包裹程度更高，外露面积减少。尾撑内侧有防高温涂层。
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Thank you very much for that clarification, the ventral fins have a different shape???, lots of heat in AB, possibly they did shorten the nozzles, though I believe court is still out on that??? Heat resistant coating is no doubt necessary, just as it was on F-35, which had "stabilator" damage after AB, there is a great deal of heat on these newer more efficient engines.
AeroEngineer
Junior Member
... no need to badmouth the work of others to lionize one's own side.
GreenestGDP
Junior Member
Thank you so much ,,, ,,,
for explicitly posting this < No--Need--to--Bad--Mouth--other--Country >
Sometime, I wonder from time to time, why there are a few dim minded posters who showed up and did these insulting--or--bad--mouthing against Russian technology, and yet at the same time, they do not dare to insult--nor--bad--mouthing you--know--who technology ~~ what are their hidden malicious purposes ?
Well I'm glad you asked?? the hidden purposes are as scripture says, the inner man, Blitizo has some class bub, he's talking about a mans form, and its not good form to rag on the other guys airplane, in order to make yourself, "look good". The J-20 is pretty, no need to take anything away from the T-50 in order to "prove" that, now is there?
besides that, I have stated for the record that the T-50 is probably one of the prettiest fighters ever, in the way that the F-15 or Flankers are pretty. The J-20 looks more like the F-22, she's obviously going for that L/O shaping of the F-22, F-35, a better decision in my book.
I think: Some American Politicians are really screwed up in thinking!
Lawmaker: Chinese J-31, J-20 ‘Mirror’ American F-35, F-22
A U.S. senator asked Pentagon officials why the government hasn’t retaliated against China for copying the designs of its most advanced fighter jets.
Sen. Joe Manchin, a Democrat from West Virginia, said the Chengdu J-20 twin-engine stealth fighter bears similarity to the made by Lockheed Martin Corp., while the Shenyang J-31 twin-engine multi-role fighter resembles the design also made by Lockheed.
“What they’ve been able to do in such a rapid period of time without any R&D, do you believe that that gives them a competitive advantage?” Manchin said on Tuesday during a hearing of the Senate Armed Services Committee on cybersecurity.
“I mean, I understand there might be some differences as far as in the software and the weaponry and this and that,” he added. “But they’re making leaps, which are uncommon, at the behest of us, and we know this, I understand, but we’re not taking any actions against them.”
Manchin posed the question to James Clapper, director of national intelligence; Robert Work, deputy defense secretary; and Navy Adm. Michael Rogers, commander of U.S. Cyber Command and director of the National Security Agency.
Work acknowledged that the Chinese “have stolen information from our defense contractors and it has helped them develop systems.” But he said, “we have hardened our systems.”
On Friday, President Obama and Chinese President Xi Jinping pledged to refrain from electronic theft of each other’s intellectual property for commercial gain. on Tuesday, Work was careful to characterize the agreement as a “confidence-building measure.”
“We are asking them to prove to us that they are serious about what they say about what they will do to control these efforts,” Work said.
Manchin didn’t seem convinced that the pact would substantially change Chinese behavior in cyberspace.
“I’m saying we know the J-20 is pretty much mirroring our F-22,” Manchin said. “We know that their J-31 is pretty much mirroring our F-35. We we know this and the cost to the American taxpayers … why wouldn’t we take hard actions against them? I just don’t understand why we wouldn’t retaliate from a financial standpoint.”
Work replied, “There are a wide variety of cost imposition options that we have. They’re developed through the inter-agency and, again, it’s not necessarily tit for tat. It is proportional response and we’re working through all of those right now.”
Clapper then reminded the panel that the Chinese actions in cyberspace amount to cyber-espionage.
“Of course, we too practice cyberespionage,” Clapper said. “In a public forum, I won’t say how successful we are at it, but we’re not bad at it. When we talk about what are we going to do to counter espionage, to punish somebody, or retaliate, I at least think it’s a good idea to think about the old saw that people who live in glass houses shouldn’t throw rocks.”
That comment didn’t sit well with the committee’s chairman, Sen. John McCain, a Republican from Arizona.
“So it’s OK for them to steal our secrets that are most important, including our fighters, because we live in a glass house?” McCain asked. “That is astounding.”
Clapper replied, “I’m not saying it’s a good thing. I’m just saying that both nations engage in this.”
–Brendan McGarry can be reached at [email protected]. Follow him on Twitter at .
Read more:
Defense.org
Lawmaker: Chinese J-31, J-20 ‘Mirror’ American F-35, F-22
A U.S. senator asked Pentagon officials why the government hasn’t retaliated against China for copying the designs of its most advanced fighter jets.
Sen. Joe Manchin, a Democrat from West Virginia, said the Chengdu J-20 twin-engine stealth fighter bears similarity to the made by Lockheed Martin Corp., while the Shenyang J-31 twin-engine multi-role fighter resembles the design also made by Lockheed.
“What they’ve been able to do in such a rapid period of time without any R&D, do you believe that that gives them a competitive advantage?” Manchin said on Tuesday during a hearing of the Senate Armed Services Committee on cybersecurity.
“I mean, I understand there might be some differences as far as in the software and the weaponry and this and that,” he added. “But they’re making leaps, which are uncommon, at the behest of us, and we know this, I understand, but we’re not taking any actions against them.”
Manchin posed the question to James Clapper, director of national intelligence; Robert Work, deputy defense secretary; and Navy Adm. Michael Rogers, commander of U.S. Cyber Command and director of the National Security Agency.
Work acknowledged that the Chinese “have stolen information from our defense contractors and it has helped them develop systems.” But he said, “we have hardened our systems.”
On Friday, President Obama and Chinese President Xi Jinping pledged to refrain from electronic theft of each other’s intellectual property for commercial gain. on Tuesday, Work was careful to characterize the agreement as a “confidence-building measure.”
“We are asking them to prove to us that they are serious about what they say about what they will do to control these efforts,” Work said.
Manchin didn’t seem convinced that the pact would substantially change Chinese behavior in cyberspace.
“I’m saying we know the J-20 is pretty much mirroring our F-22,” Manchin said. “We know that their J-31 is pretty much mirroring our F-35. We we know this and the cost to the American taxpayers … why wouldn’t we take hard actions against them? I just don’t understand why we wouldn’t retaliate from a financial standpoint.”
Work replied, “There are a wide variety of cost imposition options that we have. They’re developed through the inter-agency and, again, it’s not necessarily tit for tat. It is proportional response and we’re working through all of those right now.”
Clapper then reminded the panel that the Chinese actions in cyberspace amount to cyber-espionage.
“Of course, we too practice cyberespionage,” Clapper said. “In a public forum, I won’t say how successful we are at it, but we’re not bad at it. When we talk about what are we going to do to counter espionage, to punish somebody, or retaliate, I at least think it’s a good idea to think about the old saw that people who live in glass houses shouldn’t throw rocks.”
That comment didn’t sit well with the committee’s chairman, Sen. John McCain, a Republican from Arizona.
“So it’s OK for them to steal our secrets that are most important, including our fighters, because we live in a glass house?” McCain asked. “That is astounding.”
Clapper replied, “I’m not saying it’s a good thing. I’m just saying that both nations engage in this.”
–Brendan McGarry can be reached at [email protected]. Follow him on Twitter at .
Read more:
Defense.org
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