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Thread: Research in annular lift fan VTOL aircraft

  1. #1
    Join Date
    Sep 2015
    Posts
    13

    Research in annular lift fan VTOL aircraft

    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
    Attached Images Attached Images  
    Last edited by Flyinghawk; 3rd March 2017 at 14:38.

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