Read the forum code of contact Member for 8 years 6 months Posts: 13 Send private message By: Flyinghawk - 3rd March 2017 at 14:58 Research in annular lift fan aircraft: high hovering efficiency (9.03 lbs/hp) on almost tripled disk loading (28 lbs/ft2) of helicopters, high top cruise speed 0.7 Mach on thrust to weight ratio of 0.7http://www.mdpi.com/2226-4310/4/1/13 Original post Sign in to post a reply
Posts: 13
By: Flyinghawk - 3rd March 2017 at 14:58
Research in annular lift fan aircraft:
high hovering efficiency (9.03 lbs/hp) on almost tripled disk loading (28 lbs/ft2) of helicopters, high top cruise speed 0.7 Mach on thrust to weight ratio of 0.7
http://www.mdpi.com/2226-4310/4/1/13