一 | Chevron is buying Hess Corp. for $53 billion and it’s not even the biggest acquisition in the energy sector this month as major producers seize the initiative while oil prices surge.Crude prices rose sharply in early 2022 with Russia's invasion of Ukraine and are hovering around $90 per barrel after ticking another 9% higher this year. That has made big drillers cash rich and they are looking for places to invest. The Chevron-Hess deal comes less than two weeks after Exxon Mobil said that it would acquire Pioneer Natural Resources for about $60 billion. Upward pressure on oil prices are being applied from a number of fronts including the war in Ukraine. Oil markets are being stretched by cutbacks in oil production from Saudi Arabia and Russia, and now, a war between Israel and Hamas runs the risk of igniting a broader conflict in the Middle East. While attacks on Israel do not disrupt global oil supply, according to an analysis by the U.S Energy Information Administration, “they raise the potential for oil supply disruptions and higher oil prices.”Chevron said Monday that the acquisition of Hess adds a major oil field in Guyana as well as shale properties in the Bakken Formation in North Dakota. Guyana is a South American country of 791,000 people that is poised to become the world’s fourth-largest offshore oil producer, placing it ahead of Qatar, the United States, Mexico and Norway. It has become a major producer in recent years with oil giants, including Exxon Mobil, China’s CNOOC, and also Hess, squared off in a heated competition for highly lucrative oil fields in northern South America.“This combination is aligned with our objective to safely deliver higher returns and lower carbon,” Chevron Chairman and CEO Mike Wirth said in prepared remarks. “In addition, Hess increases Chevron’s estimated production and free cash flow growth rates over the next five years, and is expected to extend our growth profile into the next decade supporting our plans to increase our peer-leading dividend growth and share repurchases.”=Chevron is paying for Hess with stock. Hess shareholders will receive 1.0250 shares of Chevron for each Hess share. Including debt, Chevron valued the deal at $60 billion. And even with alarms being raised over climate change after a summer of record-smashing temperatures, elevated energy prices have driven more exploration and more drilling, and big payouts for investors. There have been a number of acquisitions focused on U.S. shale fields and another round of consolidation in the energy sector began during the pandemic as big producers sought to cut costs. In the summer of 2020, Chevron announced that it was buying Noble Energy for $5 billion. Chevron made the deal when crude prices were down more than 30% in the midst of the coronavirus pandemic. That same year, ConocoPhillips bought shale producer Concho Resources in an all-stock deal valued at $9.7 billion.Last month Britain gave the go-ahead for a major oil and gas project in the North Sea, ignoring warnings from scientists and the United Nations that countries must stop developing new fossil fuel resources if the world is to avoid catastrophic climate change.Chevron said the deal will help to increase the amount of cash given back to shareholders. The company anticipates that in January it will be able to recommend boosting its first-quarter dividend by 8% to $1.63. This would still need board approval. The company also expects to increase stock buybacks by $2.5 billion to the top end of its guidance range of $20 billion per year once the transaction closes.The boards of both Chevron and Hess have approved the deal announced Monday after six months of negotiations, and is targeted to close in the first half of next year. It still needs approval by Hess shareholders. John Hess, the company's CEO, is expected to join Chevron’s board. His family owns a large chunk of Hess. Shares of Chevron Corp., based in San, Ramon, California, declined more than 3% Monday. Share of Hess Corp., based in New York City, fell slightly.。 现代空战中，空空导弹的性能无疑是决定空军战力的重要因素。最近，美国海军在内华达州里诺的一次年会上首次公开了AIM-424超远程空空导弹，这一消息立刻引发了国际防务界的广泛关注。可以说，这款导弹不仅承载了美国对空中威慑力的期望，更是未来作战理念的一次大胆尝试。 AIM-424导弹被视为美国海军对付潜在敌对空中力量的一张王牌，其宣称的最大射程达到了463公里，这是一个令人瞩目的数据。虽然理论射程可能因实际环境条件而有所下调，但实际有效射程仍然有可能在350到400公里之间。
二 | 这一数字无疑让中国和俄罗斯的空军感受到了前所未有的压力。 这款导弹的设计注重与隐身战机的良好适配能力，采用了两级固体火箭发动机，具备优秀的加速性能。在发动机设计上，AIM-424通过第一阶段的推力加速以及第二阶段的二次点火技术，确保了导弹即使在超远距离飞行后也能保持较高的动能和机动性。这种设计不仅提高了导弹的打击能力，也增强了它在复杂战场环境中的生存能力。 AIM-424的工程设计堪称一个奇迹。通常来说，射程如此巨大的空空导弹都需要相对庞大的体积，但AIM-424经过“雷神”公司的极限尺寸优化后，体积却与现有的AIM-120导弹非常接近。
三 | 这使得AIM-424能够顺利装入F-35C的内置弹舱，这一点尤为重要，因为外挂将导致第五代战机的隐身能力受到严重影响。 值得注意的是，AIM-424的研发历程并不简单。早在2017年，美国国防部高级研究计划局（DARPA）就开始着手此项目，旨在为F-35开发一种新型超远程空空导弹。不过，由于早期进展缓慢，项目后来转交至美国海军，并由“雷神”公司负责具体研发。到2023年，该导弹终于经过多轮测试进入定型阶段，这一过程充分体现出其背后的技术积累与创新能力。 AIM-424的出现并不是偶然。
四 | 在当前全球安全环境日益复杂的背景下，空中优势的争夺愈发激烈。美国海军显然意识到了这一点，因此在推出AIM-424的同时，也在不断改进现有的空空导弹系统。 例如，在2024年，美国海军计划装备基于“标准-6”导弹改装的AIM-174B超远程空空导弹，这款导弹同样具有370到460公里的射程，且具备多用途作战能力，能够对地面和海上目标实施打击。
五 | 从某种意义上说，AIM-424与AIM-174B共同构成了一套空中打击组合拳。
六 | 前者主要针对机动性和隐身性强的敌方大飞机，如第五代甚至第六代战机，而后者则更适合攻击较慢的目标，如轰炸机和预警机。
七 | 这样的战术思路，不仅使得美国海军在面对不同类型的威胁时能够更为灵活，还提升了整体作战效能。 尽管AIM-424的前景看似光明，但军事专家们也指出了潜在的挑战。首先，美国海军是否具备足够的资源同时采购AIM-424和AIM-174B？毕竟，在有限的军费下，如何分配资源尤为关键。此外，如何在实际战斗中有效运用这两款新型空空导弹，以及如何训练飞行员以最大化利用它们的战术优势，也都是摆在美国军方面前的难题。 同时，从技术层面来看，AIM-424的成功与否，将取决于其实际的制导精度和命中率。虽然目前的设计理念与技术保障了它的高性能，但实战中面对复杂的电子干扰和敌方防空火力，能否如宣传般“杀敌于无形”仍需时间来验证。 AIM-424超远程空空导弹的问世，将成为美国空军现代化进程中的一块重要拼图。从根本上讲，它不仅仅是一枚导弹，更是美国未来空战策略的重要组成部分。
八 | 随着军备竞赛的不断升级，各国在空军领域的投入必将更加激烈。而AIM-424的出现，正是对此局势的积极回应。我们有理由相信，未来的空战将更加复杂、更加激烈，而掌握先机的国家，则将在这场博弈中占据主导地位。
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