11. Four pilots flew the M2-F2 on its 16 glide flights . 12. During glide flight , the lizard's body axis and tail are straightened to maximize flight distance. 13. After a period of gliding flight , the engine could be restarted with a gas starter. 14. He studied the requirements of gliding flight in birds. 15. One genus of volaticotherin, " Volaticotherium ", has clear evidence of being capable of gliding flight . 16. First to fly the X-24B was John Manke, in a glide flight on 1 August 1973. 17. Flight is described in three stages : dive flight, glide flight , and ascent flight or landing phase. 18. In September 2012, Virgin Galactic announced that the unpowered subsonic glide flight test program was essentially complete. 19. The louvers themselves could also be completely closed for gliding flight in the event of engine failure. 20. This category lists multi-engine passenger airline accidents involving loss of all engines in flight and subsequent gliding flight .
