It is investigated whether a nonrotating lifting fan remaining uncovered during cruise flight, as opposed to being covered by a shutter system, can be realized with limited additional drag and loss...

中文翻译：

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巡航飞行中机翼吊扇保持打开状态的风洞研究

研究是否可以在巡航飞行期间保持未旋转的升力风扇，而不是被百叶窗系统覆盖，是否可以在有限的额外阻力和损失的情况下实现……