The Sun Flyer 2, an electric two-seat trainer under development in Denver at Bye Aerospace, successfully completed its first flight on April 10 from Centennial Airport, a milestone the company described as "flawless.""As with most first flights, we're not trying to test any limits at this stage," said Bye Aerospace founder and CEO George Bye. That will come in the months ahead. However, the engineering and performance parameters measured during what Bye described as a "short and very successful flight" met or exceeded all flight-test targets.Bye said a selection for the electricmotor to power the production version of the Sun Flyer 2 has yet to be made, but the power-plant choice should be determined soon. The energy storage system, however, has been selected. LG Chem MJI lithium-ion battery cells, which offer 260 watt-hour/ kg of energy density, will provide a 3V2-hour flight endurance for the Sun Flyer 2, Bye said, a significant claimed improvement over Pipistrel's Alpha Electro electric two-seat trainer, which offers a one-hour endurance with reserve.
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机译：Sun传单2是在丹佛Bye航天公司开发的电动两座教练机，已于4月10日成功地从百年纪念机场完成了首次飞行，该里程碑被公司称为“完美无瑕”。在首批航班最多的情况下，我们现阶段不尝试测试任何限制，”“再见航空航天公司创始人兼首席执行官乔治·再见说。那将在未来几个月内实现。但是，在Bye所说的“短暂而非常成功的飞行”过程中测得的工程和性能参数达到或超过了所有飞行测试目标。 r nBye表示选择了电动马达为生产提供动力Sun Flyer 2的版本尚未确定，但动力装置的选择应尽快确定。但是，已经选择了储能系统。 LG Chem MJI锂离子电池单元的能量密度为260瓦时/千克，将为Sun Flyer 2提供3V2小时的飞行续航能力，据Bye称，这比Pipistrel的Alpha Electro电动两座座椅有了显着改进教练，提供一小时的耐力和储备。
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