查看完整版本: 造型乖张的双旋翼直升机[127p]

造型乖张的双旋翼直升机[127p]

双旋翼共轴式直升机主要优点是结构紧凑，外形尺寸小。这种直升机因无尾桨，所以也就不露要装长长的尾梁，机身长度也可以大大缩短。有两副旋翼产生升力，每副旋翼的直径也可以缩短。机体部件可以紧凑地安排在直升机重心处，所以飞行稳定性好，也便于操纵。与单旋翼带尾桨直升机相比，其操纵效率明显有所提高。此外。共轴式直升机气动力对称，其悬停效率也比较高。
　　研制共轴式直升机取得最大成功的是俄罗斯的卡莫夫设计局，该设计局研制出了庞大的“卡”系列直升机，双旋翼共轴式直升机它们基本上都是双旋翼共轴式布局。除大量民用直升机外，如卡-26、卡-226等，军用直升机也有不凡表现，卡-25曾是前苏联舰载反潜直升机食主力，新研制的战斗直升机卡-50、卡-52则更令人瞩目。双旋翼共轴式直升机的主要缺点是操纵机构复杂

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卡-52看着威武，像一只凶猛的蝗虫似的。不知天国掌握共轴技术了吗？