6S.Duke Posted March 20, 2014 Posted March 20, 2014 (edited) Hi guys, i'm searching detailed information about the design of the Ka-50 rotor system. I did several researches on google and also I used "Jane's All the World Aircraft" book but I have found contrasting informations and unsatisfactory. Could somebody help me? I'm interested particularly in constituent materials and which rotor type is it (rigid, semi-rigid, fully-articulated, ...). In "Jane's All the World Aircraft" book I red the sentence: "Coaxial, contrarotating and widely separated semi-rigid three-blade rotors". I think it's strange... I remember that semi-rigid rotor systems are costituited by two blades, right? :helpsmilie: Thank you for answer! :) Edited March 20, 2014 by 6S.Duke MB339 EFM Coder Frecce Tricolori Virtuali [sIGPIC][/sIGPIC]
AlphaOneSix Posted March 20, 2014 Posted March 20, 2014 Yeah, semi-rigid (as far as I know) only refers to two-bladed teetering rotor systems. The rotor system on the Ka-50 would best be described as "rigid". The rotor head on the Ka-50 is hingeless, although feathering and flapping are possible through the use of a torsion plate (like a flex beam on a Bell 412) or strap pack (as used on the OH-6/MD-500 series and the AH-64).
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