Trimmed by multi-control-surfaces is one important method for the joined-wing near-space-long-endurance UAV to improve the L/D, extend loiter time and decrease take-off weight.
采用多控制面配平是联翼布局临近空间长航时无人机提高升阻比、延长航时、降低起飞重量的重要措施。
All passengers, the plane will take off from San Francisco to Shanghai China d. c, please return to your seat, and fasten your seat belt.
各位旅客，从旧金山飞往中国上海的飞机即将起飞了，请各位旅客回到座位上，系好安全带。
All passengers, the plane will take off from San Francisco to Shanghai China d. c, please return to your seat, and fasten your seat belt.
各位旅客，从旧金山飞往中国上海的飞机即将起飞了，请各位旅客回到座位上，系好安全带。
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