Program System Of Computer-Aided Design Of Helicopter Rotor Blade Airfoil

This paper represents a continuation and extension of "Mathematical Model of Helicopter Rotor Airfoil". In ref. [1], [4] we had established airfoil mathematical equations for a tapered and twisted rotor blade with two known sections. According to these equations, an integral mold for production of Y-2 helicopter fibreglass rotor had been computer-calculated and machined with numerical control. This mold has been already put to use in a factory and proved to be very efficient.