Great news from Germany as the first D-Motor engined Twister takes to the skies for the first time.
Video on this link: https://www.youtube.com/watch?v=rZ4PVDyBdsc
Reports are that all engine parameters stay in the green and with a climb prop they are seeing 1,000 fpm climb rate at 75 knots and 100 knots in level flight at 2,800 rpm (max continuous).
Next test flights will be with a cruise prop.