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一 | 8月26日消息,中科宇航官方今日发文,8月25日力箭二号遥二运载火箭完成出厂前各项工作,产品功能和性能指标均满足飞行任务要求,顺利通过出厂评审,即将奔赴发射场,拟于今年10月执行发射。

二 | NAIROBI, Kenya -- Tanzania's government signed a controversial port management deal with Dubai-based DP World that had fueled protests in the African country in the past months and led to arrests of dozens of critics.The deal was signed on Sunday in the presence of Tanzania’s President Samia Suluhu Hassan, who has recently been accused of cracking down on critics such as her predecessor, the late John Magufuli.Tanzania Ports Authority Director General Plasduce Mbossa said that DP World, based in the United Arab Emirates, will only operate four berths and not the entire port. Its performance would be reviewed every five years for a total contractual period of 30 years.The opposition and civil society have protested the government decision to have a foreign logistics company manage Tanzania’s ports. The government has said the move would increase port efficiency and grow the country’s economy.The ports agreement was approved by Tanzania’s parliament on June 10, triggering protests in which more than 22 people have been arrested so far, according to Human Rights Watch.The international rights group in August urged Tanzania to respect freedom of expression and the right to protest. Tanzania has made some reforms since the death in 2021 of autocratic President Magufuli, who cracked down on critics and introduced draconian laws.Hassan, who is serving out Magufuli’s term, has been accused of continuing his anti-democratic policies. However, she was lauded in 2022 for lifting a prohibition on four newspapers that had been banned by the former leader.。 据悉,本次任务将首次执行低轨星座规模化组网发射,以一箭18星的方式投送载荷,此前力箭二号已中标上海垣信千帆星座的一箭18星发射服务采购项目。 力箭二号是我国首款通用助推器核心(CBC)构型的运载火箭,总长53米,起飞重量625吨,500公里太阳同步轨道运载能力8吨,200公里近地轨道运载能力12吨,通过增减助推器可覆盖2至20吨运力区间。 今年3月30日遥一火箭首飞成功,将轻舟初样试飞船和卫星精准入轨,单次输送4.2吨载荷,首飞即服务国家重大战略。 本次遥二总装测试周期较首飞稳步缩短,正朝标准化、批量化目标迈进,力箭二号总指挥杨浩亮此前透露,借鉴汽车自动化产线逻辑,该型号可实现年产20发的生产能力。 回收布局方面,中科宇航走的是一条差异化路线,力箭二号采用集束式回收方案,芯一级与助推器不分离、一起整体回收,这一构型在全球属首创,气动操纵性更优、着陆冲击更低、动力冗余更强,回收部分占全箭比例更高。 具体节奏上,公司先通过力鸿系列飞行器验证回收技术,力鸿一号已完整验证再入大气层减速回收和箭体精确落点控制,今年还将进行力鸿二号百公里级回收试验,之后把回收技术迁移至力箭二号,争取在第八发实现发动机和火箭的共同回收,火箭设计复用次数超过20次。

三 | 并且,成本也是改箭的另一大杀手锏,力箭二号在不回收状态下,单次发射成本约3万元人民币每公斤,与SpaceX猎鹰9号基本持平,实现回收后有望降至1.5万元每公斤左右,约为SpaceX的一半。作为对比,猎鹰9号面向商业客户的公开报价在每公斤5000至7000美元。
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Published on:04:05:56