As to the selection of rotor blade number for light and medium helicopter, 4 blade and 5 blade rotor are typical.
而旋翼桨叶片数的选择，对轻型和中型直升机来讲，4片桨叶旋翼和5片桨叶旋翼具有典型意义。
A CH-46E Sea Knight helicopter with Marine Medium helicopter Squadron 265 lands at an improvised landing zone in Sendai on March 14, 2011.
2011年3月14日，一架载有265海军中队的CH - 46 E型海洋骑士直升机降落在了仙台地区的一处临时搭建的停机坪上。
He also has a heavy-transport helicopter squadron with four Boeing Chinooks, and a squadron of Russian medium helicopters that can serve as gunships.
他还有一个带有4架波音支努干直升机的重型运输直升机中队，以及一个可以作为武装直升机服役的俄罗斯中型直升机中队。
With the helicopter moving backwards at medium pace, the helicopter will be aileron-rolled twice, each roll being clearly delineated by 4 hesitation points.
直升机中速后退飞行的过程中做两个四位横滚，横滚的四个停顿点要清楚。
In addition, the medium utility helicopter Z-15 co-developed by China and France recently has successfully completed its maiden flight in Marseille, France.
另外，由中法合作研制的Z一五中型直升机日前在法国马赛成功完成首飞。
Fuxianhu has a large single-spot flight deck to support one medium-size helicopter such as Z-8 and Ka-28, but has no hanger.
抚仙湖型有一个大单-点飞行甲板去支援一架中-型直升飞机，像是Z - 8和卡- 28，但是没有机库。
Fuxianhu has a large single-spot flight deck to support one medium-size helicopter such as Z-8 and Ka-28, but has no hanger.
抚仙湖型有一个大单-点飞行甲板去支援一架中-型直升飞机，像是Z - 8和卡- 28，但是没有机库。
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