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| 送交者: 瓦尔特 2012月04月06日19:21:37 于 [世界军事论坛] |
| 回 答:T50承力结构缺陷的详细报道（附图） 由 瓦尔特 于2012-04-06 19:20:29 |
进入2012年的第三个月份，俄军第四代战机T-50终于开始进行2012年的首次试飞。不过令人惊奇的是在第二架原型机T50-2的机身上竟然安 装着第一架原型机T50-1的垂尾，不禁让人对T50-1的状况产生很多臆测，有报导说T50-1的承重部件出现裂缝，已经停止试飞。 Problems 问题 The first tow prototypes have problems, in Aug, 2011, cracks were reportedly discovered in the load-bearing structure of the first prototype, T-50-1. The aircraft was being prepared for high angle-of-attack test flights and was fitted with a spin recovery parachute in the aft fuselage. Although not officially confirmed, T-50-1 has not been seen since last Aug. and flight testing with the aircraft is believed to have ceased. 最早的两架原型机在2011年8月出现了问题。据报道，T50-1的承重部件出现裂缝，该机已经完成大仰角攻击测试（AOA）并装备了反失速伞。尽管没有得到官方的确认，T50-1从去年八月开始就消失了，据信，该飞机的试飞已经停止。 The second prototype T-50-2, is currently flying with what appear to be vertical fins(marked with the number 051) previously fitted to T-50-1. Structural problems encountered so early in the trials, and before the aircraft has achieved high g-loads, show a requirement to improve the T-50’s construction. 第二架原型机T50-2在最近的飞行中装上了先前装备T50-1的垂尾（编号051），该机在高G试飞中过早地暴露了结构强度的问题，由此看来T-50的结构强度需要加强。 Mikhail Pogosyan recently said:” the fourth aircraft will fly in 2012”, but was less specific as to when. He is now sounding much more cautious about the fourth aircraft maiden flight compared with last year when he announced it would take place before the end of 2012. 波戈项最近说：“第四架原型机将在2012试飞”，但没有指出具体时间。相比他去年的（第四架原型机）将在2012年年底试飞的表态，他这次显得十分谨慎。 But Pogosyan’s apparent caution may prove to be supposition because major structural changes are being implemented in the fourth aircraft after the discovery of the problems in T-50-1. It is also of note that various various strengthening overlays appeared on the tail planes of T-50-1 and T-50-2 and now also T-50-3. 但波戈项的谨慎可能证实了之前关于T50结构强度问题的猜测，在T50-1的试飞中发现结构强度问题后，T50-4将强化结构强度，同时，T50-1、T-50-2 、T-50-3.的尾部都将出现多种形式的结构强化。 The Commander-in-chief of the Russia-Air-Force, Alexander Zelin, remains optimistic. In a statement made to the Russia RIA Novosti news agency in mid-Feb., he said that fourteen T-50 aircraft will be complete by 2015. The three existing prototypes would be joined by a further three, and a batch of pre-production aircraft would be made during 2016-2020. 俄空军总司令亚历山大泽林依然保持乐观。 在二月中旬给俄新社的新闻稿中，他声称在2015年前将完成14架T50，未来还会有三架原型机加入现有的三架原型机，同时首批预生产飞机将在2016-2020年间生产。 Second Stage: ‘Izdeliye 30’ Egine 关于“项目30”发动机 The NPO Satum company recently announced that the full-scaled development of the izdeliye 30(item 30) engine for the “second stage” PAK FA fighter has officially commenced in 2011 and that state funding of the programme had commenced. Meanwhile, in Feb., Anderei Reus, head of the Oboronprom corporation which owns the United Engine Corporation(UEC), said that the first experimental example of the izdeliye 30 “second stage” engine would be made in 2016. The powerplant is being development in a co-operative effort of all UEC facilities, but the leading role(processing 70% of the work) is being undertaken by NPO Satum. NPO萨图恩公司最近声明：用于PAKFA第二阶段的项目30发动机已经于2011年获得国家投资，并全面开展研制工作。同时，在2月份，Anderei Reus，拥有UEC公司的 Oboronprom 公司说将于2016年制造用于第一次试验的第二阶段PAKFA发动机——项目30发动机（验证机？），该发动机将与UEC联合体全部工厂合作，并将由NPO的萨图恩公司主导其中70%的工作量。 All three of existing prototype T-50 are powered by AL-41F1 engine(also refered to as the izdeliye 117). This is a major upgrade of the AL-31FP engine used in the Su-30, with a larger diameter fan, new high and low pressure turbins, and improved combustion chamber and a new digital control system intergrated with the aircraft control system. 国有企 业萨图恩公司最近声明：用于PAKFA第二阶段的项目30发动机。现有三架T-50原型机的供电由AL-41F1发动机（117发动机）提供。这是一个主 要来自SU30MKI的AL31FP矢量发动机的升级型号，配备有一个更大直径的风扇、新的高低压风扇，同时改进了燃烧室和新的整合飞控的数字化控制系统 （FADEC） According the a Nov. 2011 UEC press release, 16 AL-41F1 engines have been made: six for ground tests and ten for fligh testing on the Su-27M and T-50 prototypes. 根据2011年11月UEC压力测试，16台117发动机已经被制造，6台进行地面测试，10台在SU27M和T50上进行飞行测试。 The current AL-41F1(izdeliye 117) is rated to 15 tonnes of reheated thrust and about 9.5 tonnes of dry thrust(high dry thrust is important for supercruise). Reportedly, the new izdeliye 30 engine is to be rated at 18 and 11.5 tonnes respectively, and will be the power plant of the production series PAK FA fighters by 2020. 目前的117发动机达到最大加力15吨，军推9.5吨（军推对超音速巡航非常重要）。据报告，新的项目30发动机预计将达到最大加力18吨，军推11.5吨，并将于2020年成为PAKFA战机的发动机。 T50-2的机身上安装着T50-1的垂尾 T50-2的机身上安装着T50-1的垂尾 T50-2的机身上安装着T50-1的垂尾 |
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