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Zhuque-3 chief commander reveals cause of Y1 rocket's failed recovery, saying its data contributed to Y2's success_我的网站
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The recovery of the first stage of Zhuque-3, China's first reusable carrier rocket developed by LandSpace, was failed during a test flight back on December 3, 2025, while the second stage of the rocket managed to successfully enter the designated orbit, according to the Xinhua News Agency.
Dai Zheng, chief commander of Zhuque-3, said that when the rocket was about 3.3 kilometers above the ground, it needs to perform a rapid deceleration maneuver by reigniting its engine, a process known as a "landing ignition."
"The ignition sequence was completed and the engine did ignite, but abnormal combustion occurred afterward. The rocket eventually crashed near the edge of the landing pad," Dai said, according to CCTV.
Although the rocket did not achieve a successful recovery, the mission, China's first orbital-class rocket first-stage recovery test, collected telemetry data during the return phase, provided a clearer picture of the flight environment throughout the recovery process, and yielded a large amount of valuable first-hand test data, per CCTV.
Drawing on the data collected from the Zhuque-3 Y1 mission, the development team made improvements to the Y2 launch vehicle.
Eight months after the Y1's unsatisfying recovery, the Zhuque-3 Y2 reusable launch vehicle on Wednesday conducted a flight test, carrying not only a satellite payload but also successfully carried out a major test of China's emerging reusable rocket capabilities. After completing its orbital mission, the rocket's first stage attempted a controlled return and recovery.
The Y2 mission was conducted on the basis of experience accumulated from the previous flight test, with improvements focused on recovery reliability, flight control and engine performance.
LandSpace said it optimized the first-stage landing propulsion scheme by reducing the number of engines used during landing ignition, simplifying system design and improving reliability during the recovery phase. The company also added an autonomous safety control function capable of predicting landing points based on flight conditions and making corresponding safety adjustments.
Global Times
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二 | 中新网北京8月20日电 题：还原“平常人”孔繁森 中新网记者 黄欣欣 当山东梆子在全国地方戏演出中心响起，孔繁森的形象再次鲜活了起来。故事的开头，曾援藏三年的孔繁森又要远赴拉萨上任了。 20日，由聊城市山东梆子剧院创排的现代戏《孔繁森》亮相第七届全国少数民族文艺会演。
三 | 六幕戏从“辞家别母”到“献身阿里”，把这位山东援藏干部的人生故事搬上舞台。 8月20日，由聊城市山东梆子剧院创排的现代戏《孔繁森》亮相第七届全国少数民族文艺会演。
四 | 记者 贾天勇 摄 孔繁森一生两度进藏，在从新疆返回阿里的途中遭遇车祸，殉职时50岁。他的事迹已广为人知，如何在舞台上加以还原？复排导演张东华说，这是戏里最大难点。 为寻找孔繁森的身影，主创团队专程去孔繁森同志纪念馆。纪念馆前，有一串五十步的脚印，象征孔繁森从1944年出生到1994年殉职的人生。
五 | 17岁参军，35岁第一次进藏任岗巴县委副书记，44岁第二次进藏任拉萨市副市长，期间收养三位地震灾区孤儿，近50岁时赴任阿里地委书记，不到两年时间，跑遍全地区106个乡，行程8万多公里...... “按那个脚印一走，马上就抓住孔繁森的性格。”张东华说，他干事风风火火、雷厉风行，带着山东人的豁达。
六 | 在舞台上，孔繁森有多个走的动作，走向雪山、走进藏族百姓家、谢幕时从人群中走出来。饰演孔繁森的祝玉芹说，他始终带着采风时走过那串脚印的感受，“步伐坚定，一步步往前。
七 | ” 祝玉芹也来自山东，他额头宽厚，笑起来淳朴亲和。从十多岁学山东梆子，演过不少戏，他最喜欢的还是这一部。 但最初接到角色时，祝玉芹心里很忐忑。“怕把人物演砸了。”拿到剧本后，他看第一场就用了整整一上午，最后几页始终看不下去。
八 | “看到那儿就开始哭，把剧本放下，在屋里转一圈，调整情绪再看。
九 | ” 最打动他的，是孔繁森母亲那句台词：“三儿，咱不去不行吗？娘老了，娘走的时候怕见不了你呀！娘想你呀！”当时孔繁森母亲已年近九旬，不知此次和儿子分别，是暂别还是永别。 祝玉芹反复揣摩孔繁森的照片、录音等资料，既求形似也求神似。他注意到，孔繁森在西藏多是席地而坐，和藏族同胞围成一圈拉家常、问困难、送药看病。“当时条件差，毡房里不一定有小凳子，他就把风衣一撩，和大家坐在一起。” “我们重点刻画母子情、父女情、夫妻情、民族情，希望让观众进入剧场，记住的是一位完整的山东汉子。
十 | ”张东华说，戏里没有把孔繁森塑造成一个永远正确的符号，也写他的不舍、愧疚和柔软。 第一场别家戏，他为母亲梳头，与妻子告别时脚步迟疑；第四场戏，妻子带着女儿进藏探望，他却因工作拖了半个月才见到她们，面对女儿的委屈，他一时不知如何开口。放在戏里不过三五分钟，却让不少观众说“原来他也会为难，会挣扎”。 戏剧结尾，孔繁森和家人告别，他缓慢戴上礼帽，转身，迈步，走向舞台深处，化为一尊雕像。洁白的哈达漫天飘落，合唱响起：你生是泰山骨，死是高原汉，血是东海水，魂是雪山莲。(完) 【编辑:万纪玮】。
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