这是一个无人驾驶的双翼飞机，它有着自动钢琴的风箱来为回旋装置提供动力，以及一个收银机的机械装置——通过记录类似螺旋推进器的转子的旋转次数来计算飞行的距离。
It was an unmanned biplane with player-piano bellows to power its gyroscope and a cash-register mechanism that calculated distance flown by counting the rotations of a propeller-like rotor.
在1925年10月，国王的NACA试飞员保罗带来了沃特维生素e - 7“蓝鸟”双翼飞机，通常用作高级教练机的飞行前服用。
In October 1925, NACA test pilot Paul king poses with a Vought VE-7 "Bluebird" biplane, typically used as an advanced trainer, before taking flight.
在1925年10月，国王的NACA试飞员保罗带来了沃特维生素e - 7“蓝鸟”双翼飞机，通常用作高级教练机的飞行前服用。
In October 1925, NACA test pilot Paul king poses with a Vought VE-7 "Bluebird" biplane, typically used as an advanced trainer, before taking flight.
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