Based on the Eurocopter AS332L2 Super Puma, it features a five-bladed main rotor and a modified airfoil shape that reduces vibration levels.

它基于欧洲直升机公司 AS332L2 Super Puma，具有五叶主旋翼和改进的翼型形状， 可降低振动水平。

So where you see a typical flight feather that has a closed vein and an offset rachis to give it an aerodynamic airfoil shape, the ostrich is have done away with that completely.

所以如你所见这是一个典型的飞行羽毛，有一个封闭的静脉和一个偏移的羽轴给它一个符合空气动力学的翼型形状，鸵鸟已经完全失去了这种羽毛了。