3DP-Miniatures
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The 1,100 kg Workhorse Surefly uses an electric quadcopter layout with two contra-rotating propellers on each corner and a range-extending petrol engine, giving it a range of 70 miles and a top speed of 70 mph. The gas engine can then be fueled quickly with petroleum for immediate onward flight.The Surefly thus could easily become a two-seat sportscar of the skies with a very affordable price tag.