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商业与自然共生 天目里打造“无废”商圈新范式_我的网站
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The Washington Post reported on Saturday that the US Navy is considering a major redesign of its new Ford-class aircraft carriers to better match Trump's preferred aesthetic, with the president favoring ships that more closely resemble US carriers from the World War II era. One option under study would move the carrier's island farther forward, toward the middle of the ship.
US officials cited by the report warned that such a change could require billions of dollars in redesign costs and cause substantial delays.
The potential island redesign comes only days after Trump ordered another far-reaching change to the Ford-class program. On Thursday, he signed a national security memorandum directing the Pentagon and Navy to develop a plan within 60 days to replace the Electromagnetic Aircraft Launch System (EMALS) with steam catapults and the Ford-class carriers' Advanced Weapons Elevators with hydraulic systems, beginning with the future USS Doris Miller, or CVN-81, USNI News reported.
Trump has repeatedly criticized EMALS as "too complex" and "not as effective as steam catapults," according to Reuters.
But the order would reverse a technology path the US Navy has pursued for more than a decade. When the Navy selected EMALS in 2009, it said the system would lower overall lifecycle costs, require less maintenance than steam catapults and place less physical stress on carrier-based aircraft, per Reuters.
As of March 2026, the USS Gerald R. Ford had conducted 36,863 EMALS launches, according to Pentagon documents cited by Reuters.
General Atomics, the manufacturer of EMALS, has warned against changing course on the Doris Miller, saying nearly 50 percent of production related to the system has already been completed and that a switch now would create significant cost, schedule and integration risks, according to Reuters.
Zhang Junshe, a Chinese military affairs expert, told the Global Times on Sunday that the Ford-class carrier's aft-positioned island is not merely an aesthetic choice, but is closely tied to flight-deck efficiency and landing safety. "Moving the island farther aft creates more space around the catapults for aircraft parking and handling, helping shorten launch preparation time, while also reducing airflow disturbance during aircraft recovery," he said.
Relocating the island forward would not be a simple cosmetic adjustment, but a major redesign affecting weight distribution, buoyancy, flight-deck layout and aerodynamics, with significant implications for both cost and schedule, Zhang noted.
Song Zhongping, another Chinese military affairs expert, told the Global Times that Trump's demand is one thing, but turning it into an actual warship design is another.
"The first four Ford-class carriers have either entered service or are already in different stages of construction, leaving very little room for fundamental changes to their overall designs," Song said. Even the fifth and sixth ships - the future USS William J. Clinton, CVN-82, and USS George W. Bush, CVN-83 - would face considerable cost and engineering consequences if the Navy attempts to overturn their established technological architecture, he said.
The US Navy officially announced the names of CVN-82 and CVN-83 in January 2025, per the US Navy official website.
"There is an obvious gap between US President's political will and the engineering realities of aircraft-carrier construction," Song said.
Such proposed changes come as Ford-class construction timelines have already grown considerably compared with those of the preceding Nimitz class. The US Congressional Budget Office (CBO) said in April that Nimitz-class carriers typically took seven to eight years to build, while Ford-class ships are currently taking roughly 10 to 11 years. In a separate assessment released this month, the CBO estimated that future Ford-class carriers under the Navy's 2027 shipbuilding plan could cost about $22 billion apiece.
"Electromagnetic launch represents an advanced direction in aircraft-carrier catapult technology and has far greater development potential than traditional steam catapults," Song said. "If the US gives up electromagnetic catapults and returns to steam catapults, that would be a technological regression and a step backward."
Echoing Song, Zhang said electromagnetic catapults offer more precise control of launch energy and broader compatibility with different types of carrier-based aircraft, while requiring less shipboard space than steam systems with their extensive high-pressure piping.
"Replacing EMALS with steam catapults on a Ford-class carrier already designed around electromagnetic launch would not only represent a technological step backward, but could also turn an attempt to reduce risk into a new source of engineering and system-integration risk," Zhang said.
。 在杭州西湖与西溪湿地之间，一条长约2200米的活力纽带正悄然进行一场深刻的绿色革命——天目里国际街区，以“商业与自然共生”为核心理念，将绿色低碳融入空间规划、运营管理与文化表达全过程，构建起一套科学高效的“无废”管理体系。街区应用垂直绿化、地源供暖制冷、雨水回收等多项绿色建筑技术，从源头降低建筑能源消耗和碳排放。
二 | 以精细管理提升运营效能，制定完善垃圾分类、绿色采购、能耗管理等制度规范，将“无废”理念嵌入物业日常管理工作标准。街区还积极引导商户与消费者共同参与源头减量，鼓励商户实施绿色采购，使用可降解、可循环包装材料，全面减少一次性塑料制品。
三 | 目前，街区实现分类容器规范设置全覆盖，依托常态化智能督导与培训，垃圾分类准确率提升至85%以上。街区内还规划了一条“低碳消费走廊”，鼓励商户开设绿色商品专区，开展旧物回收兑换，或将再生材料商品与艺术展览相结合，形成“消费—回收—再利用”可视化闭环。
四 | 同时，依托街区艺术与文化资源，策划融入再生艺术元素的诗歌节、循环主题市集等活动，覆盖8万余人次；联合社区、学校开展环保亲子手工、垃圾分类竞赛等公益活动，扩大宣传辐射范围；培训保洁员、客服人员及志愿者担任“无废宣传员”，在各自岗位上对商户和消费者进行面对面引导，形成浓厚的共建共享氛围。
五 | 天目里的实践表明，“无废”商圈建设通过设计、管理、技术、文化的多重创新，为商业体可持续发展乃至城市绿色更新开辟出一条清晰路径。
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