原创翻译：APA对TG四代的分析

看到keypublishing论坛里的那个帖子中有一段APA对TG四代的分析。

纯手工翻译。

仅做参考。
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Australia Air Power on J-20 ,
Dr Carlo Kopp

Over the last few days imagery of what is claimed to be China's new stealth fighter has appeared on a range of Chinese Internet sites. There have been no official disclosures as yet, so many of the claims appearing in the media may only be speculation presented as fact.
最近几天，被人称为中国新一代隐形战斗机的图片在多家中国网站出现。目前官方还没有正式公开，所以这些网络媒体的观点仅能作为对真实的推测。

The aircraft may be a technology demonstrator or a prototype for a mass production fighter aircraft. The latter is however much more likely, given that the PLA Chief of Air Staff claimed an IOC later in the decade.
这架飞机可能是架技术验证机，或者是架将被大量生产的战斗机的原型机。当然后者可能性大的多，PLA空军参谋长曾声称在2020之前实现初始作战能力。

What the imagery shows is a large fighter, approaching the size of an F-111, with a canard delta configuration and pair of outward canted all moving vertical tails. This configuration will provide good sustained supersonic cruise performance with a suitable engine type, and good manoeuvre performance in transonic and supersonic regimes.
这些图片展示的是一架巨大的战斗机，尺寸接近F-111，有传闻中的三角翼布局，和一对向外倾斜的全动垂直尾翼。这种布局如果配上一个合适的发动机，就会有长时间的超音速巡航能力，和良好的跨音速和超音速操控性能。

Of most interest is the stealth shaping, which is considerably better than that seen in the Russian T-50 PAK-FA prototypes and in the F-35 Joint Strike Fighter. The Chinese design appears to be largely built around the stealth shaping design rules employed in the F-22A Raptor. The chined nose section and canopy are close in appearance to the F-22. The trapezoidal inlets are closest to the F-22, but employ an F-35 style boundary layer control design. The wing fuselage join angle, critical for side aspect stealth, is very similar to the F-22 and superior to the Russian T-50 PAK-FA prototypes and the F-35 Joint Strike Fighter. The flat lower fuselage is optimal for all aspect wideband stealth. Planform alignment is impossible to assess until in flight imagery becomes available.
最令人感兴趣的是它的隐形外形，已经超过了之前所看到的俄罗斯的T-50 PAK-FA原型机和F-35联合战斗机。这次中国的设计似乎很大程度上是建立在F-22A猛禽战斗机所创立的隐形外形设计规则之上。船型的机鼻部分和座舱与F-22非常接近。梯形进气口也很像F-22，但却使用了F-35的附面层控制设计（就是所谓的DSI进气道设计）。对侧向隐身非常关键的翼身融合角度，和F-22非常像，比T-50和F-35都要好。平坦的机身下表面对全向全波段隐身都非常理想。机身俯视图目前还没法评价，拍到飞起来之后的图片之后再说。

The aft fuselage, tailboom, strakes and nozzles are not compatible with high stealth performance, but may only be stop gap measures to expedite flight testing of a prototype. The airframe configuration and aft fuselage would be compatible with an F-22 style 2D TVC nozzle design, or a non-TVC rectangular nozzle designed for controlled infrared emission and radio-frequency stealth.
尾部机身，尾撑，腹鳍和尾喷口与强大的隐身性能并不相配，但这也可能是为了加快速度让原型机先飞起来测试的权宜之计。机身布局上，后机身可能会用F-22那样的二维TVC喷口设计，或者是非TVC的长方形喷口设计来控制红外辐射和实现雷达隐身。

The PLA have not disclosed the engine type. There are claims that the Russians supplied supercruise capable 117S series engines - these would not be sufficient to extract the full performance potential of this advanced airframe.
PLA并没有泄露发动机的型号。有人声称俄罗斯提供了有超巡能力的117S系列发动机——这种引擎当然还无法发挥出这种先进机身的全部性能潜力。


The airframe configuration is compatible with ventral and side opening internal weapon bays, and large enough to match or exceed the internal weapons payload of the F-22A Raptor. Internal fuel fraction may also be high, given the fuselage configuration and large internal volume of the big delta wing.
机身布局上是可以布置腹部和两侧武器舱的，并且容量上可以和F-22A的内部武器载荷差不多，或者甚至有所超过。内部载油系数同样也将会很高，这一点由机身构造和大三角翼的巨大内部空间就可看出。

Other unknowns are the intended sensor suite. China has yet to demonstrate an AESA radar, or an advanced indigenous emitter locating system. However, these could become available by the time this airframe enters production.
其他未知的还包括主动传感器组件。中国已经展示过AESA雷达，或者说一种先进的国产有源探测系统。但是，这要到这架飞机投产的时候才会有。

The size of the airframe, and its evident focus on supersonic persistence, suggests at a minimum an intention to provide a long range interceptor for air control in the Second Island Chain geography. This capability by default would provide the ability to penetrate an opposing IADS to destroy assets like AWACS, other ISR systems, and tankers. Suffice to say, with suitable internal weapons, the design could be employed as a penetrating strike aircraft, in the combat radius class of the F-111 or Su-34 Fullback.
机身尺寸，以及明显侧重于长时间的超音速巡航能力，都表明一个最基本的意图，那就是要制造一架能够在第二岛链制空的远程拦截机，穿透对方的防空力量摧毁对手的高价值目标，例如预警机以及其他的ISR系统和油轮等。我只想说，只要有合适的内部武器，这种设计还可以转变为一架突破敌后的战斗轰炸机，拥有F-111或苏-34级别的战斗半径。

The notion that an F-35 Joint Strike Fighter or F/A-18E/F Super Hornet will be capable of competing against this Chengdu design in air combat, let along penetrate airspace defended by this fighter, is simply absurd.
那种认为F-35或F/A-18E/F就可以在空战中与成都的这架飞机一较高下，或突破它防守的空域的想法，实在是太荒谬了。

APA will produce a detailed analysis at a future date, once more technical material becomes available.
在未来几天，如果有更多的技术材料，《澳洲空中力量APA》将会有更详细的分析。

Some excellent analysis of this system by Bill Sweetman, Editor of DTI, can be located at:
更多精彩分析，来自Bill Sweetman（DTI编辑)，可以看下面：

J-20 - Denial Is Not An Option
China's Stealth Striker

看到keypublishing论坛里的那个帖子中有一段APA对TG四代的分析。

纯手工翻译。

仅做参考。
------------------------------------------

Australia Air Power on J-20 ,
Dr Carlo Kopp

Over the last few days imagery of what is claimed to be China's new stealth fighter has appeared on a range of Chinese Internet sites. There have been no official disclosures as yet, so many of the claims appearing in the media may only be speculation presented as fact.
最近几天，被人称为中国新一代隐形战斗机的图片在多家中国网站出现。目前官方还没有正式公开，所以这些网络媒体的观点仅能作为对真实的推测。

The aircraft may be a technology demonstrator or a prototype for a mass production fighter aircraft. The latter is however much more likely, given that the PLA Chief of Air Staff claimed an IOC later in the decade.
这架飞机可能是架技术验证机，或者是架将被大量生产的战斗机的原型机。当然后者可能性大的多，PLA空军参谋长曾声称在2020之前实现初始作战能力。

What the imagery shows is a large fighter, approaching the size of an F-111, with a canard delta configuration and pair of outward canted all moving vertical tails. This configuration will provide good sustained supersonic cruise performance with a suitable engine type, and good manoeuvre performance in transonic and supersonic regimes.
这些图片展示的是一架巨大的战斗机，尺寸接近F-111，有传闻中的三角翼布局，和一对向外倾斜的全动垂直尾翼。这种布局如果配上一个合适的发动机，就会有长时间的超音速巡航能力，和良好的跨音速和超音速操控性能。

Of most interest is the stealth shaping, which is considerably better than that seen in the Russian T-50 PAK-FA prototypes and in the F-35 Joint Strike Fighter. The Chinese design appears to be largely built around the stealth shaping design rules employed in the F-22A Raptor. The chined nose section and canopy are close in appearance to the F-22. The trapezoidal inlets are closest to the F-22, but employ an F-35 style boundary layer control design. The wing fuselage join angle, critical for side aspect stealth, is very similar to the F-22 and superior to the Russian T-50 PAK-FA prototypes and the F-35 Joint Strike Fighter. The flat lower fuselage is optimal for all aspect wideband stealth. Planform alignment is impossible to assess until in flight imagery becomes available.
最令人感兴趣的是它的隐形外形，已经超过了之前所看到的俄罗斯的T-50 PAK-FA原型机和F-35联合战斗机。这次中国的设计似乎很大程度上是建立在F-22A猛禽战斗机所创立的隐形外形设计规则之上。船型的机鼻部分和座舱与F-22非常接近。梯形进气口也很像F-22，但却使用了F-35的附面层控制设计（就是所谓的DSI进气道设计）。对侧向隐身非常关键的翼身融合角度，和F-22非常像，比T-50和F-35都要好。平坦的机身下表面对全向全波段隐身都非常理想。机身俯视图目前还没法评价，拍到飞起来之后的图片之后再说。

The aft fuselage, tailboom, strakes and nozzles are not compatible with high stealth performance, but may only be stop gap measures to expedite flight testing of a prototype. The airframe configuration and aft fuselage would be compatible with an F-22 style 2D TVC nozzle design, or a non-TVC rectangular nozzle designed for controlled infrared emission and radio-frequency stealth.
尾部机身，尾撑，腹鳍和尾喷口与强大的隐身性能并不相配，但这也可能是为了加快速度让原型机先飞起来测试的权宜之计。机身布局上，后机身可能会用F-22那样的二维TVC喷口设计，或者是非TVC的长方形喷口设计来控制红外辐射和实现雷达隐身。

The PLA have not disclosed the engine type. There are claims that the Russians supplied supercruise capable 117S series engines - these would not be sufficient to extract the full performance potential of this advanced airframe.
PLA并没有泄露发动机的型号。有人声称俄罗斯提供了有超巡能力的117S系列发动机——这种引擎当然还无法发挥出这种先进机身的全部性能潜力。


The airframe configuration is compatible with ventral and side opening internal weapon bays, and large enough to match or exceed the internal weapons payload of the F-22A Raptor. Internal fuel fraction may also be high, given the fuselage configuration and large internal volume of the big delta wing.
机身布局上是可以布置腹部和两侧武器舱的，并且容量上可以和F-22A的内部武器载荷差不多，或者甚至有所超过。内部载油系数同样也将会很高，这一点由机身构造和大三角翼的巨大内部空间就可看出。

Other unknowns are the intended sensor suite. China has yet to demonstrate an AESA radar, or an advanced indigenous emitter locating system. However, these could become available by the time this airframe enters production.
其他未知的还包括主动传感器组件。中国已经展示过AESA雷达，或者说一种先进的国产有源探测系统。但是，这要到这架飞机投产的时候才会有。

The size of the airframe, and its evident focus on supersonic persistence, suggests at a minimum an intention to provide a long range interceptor for air control in the Second Island Chain geography. This capability by default would provide the ability to penetrate an opposing IADS to destroy assets like AWACS, other ISR systems, and tankers. Suffice to say, with suitable internal weapons, the design could be employed as a penetrating strike aircraft, in the combat radius class of the F-111 or Su-34 Fullback.
机身尺寸，以及明显侧重于长时间的超音速巡航能力，都表明一个最基本的意图，那就是要制造一架能够在第二岛链制空的远程拦截机，穿透对方的防空力量摧毁对手的高价值目标，例如预警机以及其他的ISR系统和油轮等。我只想说，只要有合适的内部武器，这种设计还可以转变为一架突破敌后的战斗轰炸机，拥有F-111或苏-34级别的战斗半径。

The notion that an F-35 Joint Strike Fighter or F/A-18E/F Super Hornet will be capable of competing against this Chengdu design in air combat, let along penetrate airspace defended by this fighter, is simply absurd.
那种认为F-35或F/A-18E/F就可以在空战中与成都的这架飞机一较高下，或突破它防守的空域的想法，实在是太荒谬了。

APA will produce a detailed analysis at a future date, once more technical material becomes available.
在未来几天，如果有更多的技术材料，《澳洲空中力量APA》将会有更详细的分析。

Some excellent analysis of this system by Bill Sweetman, Editor of DTI, can be located at:
更多精彩分析，来自Bill Sweetman（DTI编辑)，可以看下面：

J-20 - Denial Is Not An Option
China's Stealth Striker