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Leadership Profile

机译：领导档案

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With his team of engineers and product developers in Santa Ana, California, Overair CEO Ben Tigner aims to apply Abe Karem's optimum speed VTOL propulsion technology to urban air mobility (UAM). "Overair is a spinoff of Karem Aircraft, although its business goals are totally different," he explained. "Overair is all about offering people more access to opportunity. If you live in an urban area, the city around you offers lots of wonderful opportunities. But your daily routine is limited by a circle of how far you can travel in a practical amount of time." Overair plans all-electric air taxis to broaden the circle above congested streets. Tigner acknowledged, "Obviously, the vehicle is just one piece of a vast, interconnected ecosystem that brings that about. We're trying to help bring about a whole new mode of transportation that opens up urban and regional centers." Tigner believes optimum speed VTOL technology makes UAM practical, safe and quiet. "For electric-powered airplanes, battery capacity and battery power density are limited. Motor power density is a little bit limited. We're getting to the point where those things are mature enough where we can have realistic vehicles, but if you have a propulsion system that gives you more thrust for the power available, you can carry people that much farther, that much faster, using less energy." The physicist explained, "Optimum speed propulsion keeps the propeller airfoils operating near their most efficient lift point, like an airplane wing flying near the sweet spot of its power bucket. This lets us get more utility from the propulsor without spending as much energy compared with conventional VTOL propulsion. This efficiency gives us utility margin that can then be applied to safety, noise, operational considerations and economics."
机译：与加利福尼亚州Santa Ana的工程师和产品开发人员在加利福尼亚州Santa Ana的工程和产品开发人员，俄罗斯首席执行官Ben Tigner旨在将Abe Karem最佳速度VTOL推进技术应用于城市空运（UAM）。 “俄罗斯州的普通飞机是凯勒姆飞机的旋转，尽管其业务目标完全不同，”他解释说。 “普通普遍存在的是，提供人们更多地访问机会。如果你住在一个城市地区，你周围的城市提供了很多精彩的机会。但是你的日常生活是有限的，你可以以实际数量旅行时间。” overair计划全电动出租车拓宽拥挤街道上方的圈子。 Tigner承认，“显然，车辆只是一个巨大的互联的生态系统，带来了这一点。我们试图帮助带来全新的交通方式，开辟了城市和地区中心。” Tigner认为最佳速度VTOL技术使UAM实用，安全和安静。 “对于电动的飞机，电池容量和电池电量密度有限。电机功率密度有点限制。我们达到那些东西成熟的地方，我们可以拥有现实的车辆，但如果你有一个推进系统，为您提供更多推力的动力，您可以携带更远的人，更快，使用较少的能量。“ “物理学家”解释说：“最佳速度推进使螺旋桨翼型在其最有效的升力点附近操作，就像它的电力桶的甜点附近的飞机翼飞行。这让我们在没有支出的情况下从推进器中获得更多效用传统的VTOL推进。这种效率使我们可以应用于安全，噪声，操作考虑和经济学的实用余量。“

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  • 来源
    《Vertiflite》 |2020年第5期|62-63|共2页
  • 作者

    Ben Tigner;

  • 作者单位

    Overair Inc.;

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