VTOL型ドローン（無人航空機）

下記の記事が出ている。

　Go Greased Lightning! Nasa's ten-engined battery-powered drone takes off like a helicopter but flies like a plane
　Daily Mail: 4 May, 2015
　http://www.dailymail.co.uk/sciencetech/article-3067183/Go-Greased-Lightning-Nasa-s-battery-powered-drone-takes-like-helicopter-flies-like-plane.html