 Generally the Z-9 is identical to the AS365N Dauphin, though later variants of the Z-9 incorporate more composite materials to increase structural strength and lower radar signature.The helicopter has a four-blade main rotor, with two turboshaft engines mounted side by side on top of the cabin with engine layout identical to the AS365N.The Z-9 teardrop-shaped body features a tapered boom to the tail fin, with rounded nose and stepped-up cockpit, retractable gear, and all flat bottom.