澳洲空中力量(Australia Air Power)关于 J-20的评论

原文地址

http://forum.keypublishing.co.uk/showpost.php?p=1681488&postcount=519

Dr Carlo Kopp

澳大利亚防务专家 CarloKopp博士

Over the last few days imagery of what is claimed to be China's new stealthfighter has appeared on a range of Chinese Internet sites. There have been noofficial disclosures as yet, so many of the claims appearing in the media mayonly be speculation presented as fact.

过去几天里，据称是中国新一代战斗机的图片出现在多个中国网站上，目前还没有官方的披露，因而媒体上的诸多观点还仅仅只是推测而已。

The aircraft may be a technology demonstrator or a prototype for a massproduction fighter aircraft. The latter is however much more likely, given thatthe PLA Chief of Air Staff claimed an IOC later inthe decade.

这架飞机可能是架技术验证机，或者是量产前的原型机，鉴于解放军空军司令声称十年内（新一代战机）形成初始战斗力，后者更为可能。

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 movingvertical tails. This configuration will provide good sustained supersoniccruise performance with a suitable engine type, and good manoeuvre performancein transonic and supersonic regimes.

图片上显示的是一架大型战斗机，尺寸接近F-111，具有鸭翼、三角形主翼、一对斜倾全动垂尾。如配上合适的发动机，这种气动外形将能提供良好的超音速巡航能力，以及在跨音速和超音速范围内的良好机动性。

Of most interest is the stealth shaping, which is considerably better than thatseen in the Russian T-50 PAK-FA prototypes and in the F-35 Joint StrikeFighter. The Chinese design appears to be largely built around the stealthshaping design rules employed in the F-22A Raptor. The chined nose section and canopy areclose in appearance to the F-22. The trapezoidal inlets are closest to theF-22, but employ an F-35 style boundary layer control design. The wing fuselagejoin angle, critical for side aspect stealth, is very similar to the F-22 andsuperior to the Russian T-50 PAK-FA prototypes and the F-35 Joint StrikeFighter. The flat lower fuselage is optimal for all aspect wideband stealth. Planform alignment is impossible to assess until in flightimagery becomes available.

最令人感兴趣的是它的隐身外形，显然要大大强于毛国的T50 PAK-FA原型机和美国的F-35联合攻击机。中国人的设计大体上建立在F-22所采纳的隐身外形设计原则之上。新战机的机首和整体式舱盖和F22非常相似，还有近似的四边形进气口，但采用了类似F-35的附面层控制设计。对于隐身性至关重要的翼身结合角度，和F22极为接近并优于毛国的T-50和F-35，扁平的机身具备理想的全向隐身能力。Planform alignment(可能是一种翼边的平行设计)是否采用仍难断定，得等飞行中的图片流出才能判断。

The aft fuselage, tailboom, strakes and nozzles are notcompatible with high stealth performance, but may only be stop gap measures toexpedite flight testing of a prototype. The airframe configurationand 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 andradio-frequency stealth.

而新机的后机身、尾梁、边条、尾喷管设计与高隐身性不相匹配，但也可能是加快原型机试飞的权宜之计。机体结构和后机身可适用一种F-22式的二元推力矢量喷口，或非推力矢量喷口以控制红外和电磁信号。

The PLA have not disclosed the engine type. There are claims that the Russianssupplied supercruise capable 117S series engines - these would not besufficient to extract the full performance potential of this advanced airframe.

解放军尚未公布新机发动机的型号，据称毛国提供了可用于超音速巡航的117S系列发动机，而这种发动机不足以激发这种先进机型的全部潜能。

The airframe configuration is compatible with ventral and side opening internalweapon bays, and large enough to match or exceed the internal weapons payloadof the F-22A Raptor.Internal fuel fraction may also be high, given the fuselage configuration andlarge internal volume of the big delta wing.

机身结构可容纳侧肋和腹下弹仓，尺寸足够赶上并超过F22的内部弹仓，考虑到庞大的机体和机翼，机内储油量或许也很可观。

Other unknowns are the intended sensor suite. China has yet to demonstrate anAESA radar, or an advanced indigenous emitter locatingsystem. However, these could become available by the time this airframeenters production.

其他不明的细节包括预期中的传感系统。中国尚未公布她的AESA雷达，或是先进的发射定位系统。但这些应该会在新机大批量生产时准备就绪。

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 aircontrol in the Second Island Chain geography. This capability by default wouldprovide the ability to penetrate an opposing IADS to destroy assets like AWACS,other ISR systems, and tankers. Suffice to say, with suitableinternal weapons, the design could be employed as a penetrating strikeaircraft, in the combat radius class of the F-111 or Su-34 Fullback.

新机的大小以及它在超音速续航性上的明显关注，至少暗示了提供一种具备争夺第二岛链制空权能力的长距离截击机的意图。这种能力，在具备适宜的内载武器时，自然也为穿透敌方防空圈，摧毁预警机或其他情报监视侦察系统和油库提供了可能。新机设计可被称作渗透型的攻击机，而其作战半径可达到F-111和SU-34的级别。

The notion that an F-35 Joint Strike Fighter or F/A-18E/F Super Hornet will becapable of competing against this Chengdudesign in air combat, let along penetrate airspace defended by this fighter, issimply absurd.

而那种认为F-35和超黄蜂能够在空战中,更别提在渗透防空圈时，能与成都的新机型一较高低的观念纯粹是荒唐可笑的。

APA will produce a detailed analysis at a future date, once more technicalmaterial becomes available.

Some excellent analysis of this system by Bill Sweetman, Editor of DTI, can belocated at:

原文地址

http://forum.keypublishing.co.uk/showpost.php?p=1681488&postcount=519

Dr Carlo Kopp

澳大利亚防务专家 CarloKopp博士

Over the last few days imagery of what is claimed to be China's new stealthfighter has appeared on a range of Chinese Internet sites. There have been noofficial disclosures as yet, so many of the claims appearing in the media mayonly be speculation presented as fact.

过去几天里，据称是中国新一代战斗机的图片出现在多个中国网站上，目前还没有官方的披露，因而媒体上的诸多观点还仅仅只是推测而已。

The aircraft may be a technology demonstrator or a prototype for a massproduction fighter aircraft. The latter is however much more likely, given thatthe PLA Chief of Air Staff claimed an IOC later inthe decade.

这架飞机可能是架技术验证机，或者是量产前的原型机，鉴于解放军空军司令声称十年内（新一代战机）形成初始战斗力，后者更为可能。

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 movingvertical tails. This configuration will provide good sustained supersoniccruise performance with a suitable engine type, and good manoeuvre performancein transonic and supersonic regimes.

图片上显示的是一架大型战斗机，尺寸接近F-111，具有鸭翼、三角形主翼、一对斜倾全动垂尾。如配上合适的发动机，这种气动外形将能提供良好的超音速巡航能力，以及在跨音速和超音速范围内的良好机动性。

Of most interest is the stealth shaping, which is considerably better than thatseen in the Russian T-50 PAK-FA prototypes and in the F-35 Joint StrikeFighter. The Chinese design appears to be largely built around the stealthshaping design rules employed in the F-22A Raptor. The chined nose section and canopy areclose in appearance to the F-22. The trapezoidal inlets are closest to theF-22, but employ an F-35 style boundary layer control design. The wing fuselagejoin angle, critical for side aspect stealth, is very similar to the F-22 andsuperior to the Russian T-50 PAK-FA prototypes and the F-35 Joint StrikeFighter. The flat lower fuselage is optimal for all aspect wideband stealth. Planform alignment is impossible to assess until in flightimagery becomes available.

最令人感兴趣的是它的隐身外形，显然要大大强于毛国的T50 PAK-FA原型机和美国的F-35联合攻击机。中国人的设计大体上建立在F-22所采纳的隐身外形设计原则之上。新战机的机首和整体式舱盖和F22非常相似，还有近似的四边形进气口，但采用了类似F-35的附面层控制设计。对于隐身性至关重要的翼身结合角度，和F22极为接近并优于毛国的T-50和F-35，扁平的机身具备理想的全向隐身能力。Planform alignment(可能是一种翼边的平行设计)是否采用仍难断定，得等飞行中的图片流出才能判断。

The aft fuselage, tailboom, strakes and nozzles are notcompatible with high stealth performance, but may only be stop gap measures toexpedite flight testing of a prototype. The airframe configurationand 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 andradio-frequency stealth.

而新机的后机身、尾梁、边条、尾喷管设计与高隐身性不相匹配，但也可能是加快原型机试飞的权宜之计。机体结构和后机身可适用一种F-22式的二元推力矢量喷口，或非推力矢量喷口以控制红外和电磁信号。

The PLA have not disclosed the engine type. There are claims that the Russianssupplied supercruise capable 117S series engines - these would not besufficient to extract the full performance potential of this advanced airframe.

解放军尚未公布新机发动机的型号，据称毛国提供了可用于超音速巡航的117S系列发动机，而这种发动机不足以激发这种先进机型的全部潜能。

The airframe configuration is compatible with ventral and side opening internalweapon bays, and large enough to match or exceed the internal weapons payloadof the F-22A Raptor.Internal fuel fraction may also be high, given the fuselage configuration andlarge internal volume of the big delta wing.

机身结构可容纳侧肋和腹下弹仓，尺寸足够赶上并超过F22的内部弹仓，考虑到庞大的机体和机翼，机内储油量或许也很可观。

Other unknowns are the intended sensor suite. China has yet to demonstrate anAESA radar, or an advanced indigenous emitter locatingsystem. However, these could become available by the time this airframeenters production.

其他不明的细节包括预期中的传感系统。中国尚未公布她的AESA雷达，或是先进的发射定位系统。但这些应该会在新机大批量生产时准备就绪。

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 aircontrol in the Second Island Chain geography. This capability by default wouldprovide the ability to penetrate an opposing IADS to destroy assets like AWACS,other ISR systems, and tankers. Suffice to say, with suitableinternal weapons, the design could be employed as a penetrating strikeaircraft, in the combat radius class of the F-111 or Su-34 Fullback.

新机的大小以及它在超音速续航性上的明显关注，至少暗示了提供一种具备争夺第二岛链制空权能力的长距离截击机的意图。这种能力，在具备适宜的内载武器时，自然也为穿透敌方防空圈，摧毁预警机或其他情报监视侦察系统和油库提供了可能。新机设计可被称作渗透型的攻击机，而其作战半径可达到F-111和SU-34的级别。

The notion that an F-35 Joint Strike Fighter or F/A-18E/F Super Hornet will becapable of competing against this Chengdudesign in air combat, let along penetrate airspace defended by this fighter, issimply absurd.

而那种认为F-35和超黄蜂能够在空战中,更别提在渗透防空圈时，能与成都的新机型一较高低的观念纯粹是荒唐可笑的。

APA will produce a detailed analysis at a future date, once more technicalmaterial becomes available.

Some excellent analysis of this system by Bill Sweetman, Editor of DTI, can belocated at: