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Hermeus Targets Mach 5 Sweet Spot for Hypersonic Project

机译：Hermeus Targets Mach 5 Surversonic项目的甜点

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摘要

Amid the ongoing surge in civil supersonic aircraft projects, Atlanta-based startup Her-meus has unveiled details of its ambitious plan to develop a higher-speed passenger aircraft with potentially double the speed advantage. Provisionally sized to carry approximately 20 passengers over transatlantic ranges at speeds of up to Mach 5, the newly revealed aircraft project is targeted at entry into service by the late 2020s. Despite the aggressive schedule and ambitious performance targets, the company believes existing and near-term technologies are already capable of supporting the venture. The decision to limit the vehicle to Mach 5, the defined boundary between supersonic and hypersonic, is a key factor in the near-term feasibility of the project, says the company. "Once you get above Mach 5, the stagnation temperatures within the combustor, as well as what we would experience at the leading edge and the like, are really hot," says Hermeus Chief Technical Officer Glenn Case. The X-15 hypersonic research aircraft, for example, recorded temperatures at Mach 5 of l,110F and 1,325F on the nose cone and wing root, respectively, while predicted equilibrium temperatures in the same zones on a hypersonic cruiser at Mach 8 are 4,000F and 3,100F.
机译：在民用超声波飞机项目的持续浪涌中，亚特兰大的创业公司揭开了其雄心勃勃的计划的细节，开发一个更高速的客机，潜在的速度优势。临时规模为在2020年代后期进入服务时，在高达马赫5的速度范围内携带大约20次乘客在跨大西洋范围内。尽管存在侵略性的时间表和雄心勃勃的绩效目标，但该公司认为现有和近期技术已经能够支持该企业。该公司表示，将车辆限制到马赫5的决定是超音速和超音速之间的定义边界，是该公司近期可行性的关键因素。 “一旦你得到马赫5，燃烧器内的停滞温度，以及我们将在前沿等人的体验非常热，”Hermeus首席技术官Glenn案说。例如，X-15超声波研究飞机分别在L，110f和1,325F的Mach 5上的记录温度，分别在鼻锥和翼根上，同时在马赫8的超声波巡洋舰上的相同区域中的预测平衡温度为4,000 f和3,100f。

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