直升机英语词汇——基础词汇和空气动力学部分

blade incidence桨叶迎角lift slop 升力线斜率blade span翼展（相对于旋翼而言）leading edge前缘trailing edge后缘

blade桨叶沿半径从内向外分为三个部分：inboard、mid-span、tip partsnon-uniform flow 非均匀来流

ideal twist儒氏旋翼blade mean lift coefficient平均升力系数与升力系数不是同一个概念

lead-lag hinge摆振铰feathering hinge变距铰oncoming stream direction迎流方向reference plane参考面

separated flow气流分离全称:retreating blade stallblade stalling桨尖失速全称:advancing blade compressiblity drag

riseazimuth angle方位角shock induced flow seperation激波-气流分离stalling characteristic失速特性

free stream dynamic pressure自由来流动压boundary layer附面层

asymmetry/symmetry不对称/对称

flow reversl气流反向horizontal tailplane水平安定面vertical fin垂直安定面

lateral/longitudinal cyclic coefficient横向/纵向周期变距headwind逆风tailwind顺风四、性能计算部分：

英文释义中文释义备注说明

performance assessment性能评估helicopter performance calculation直升机性能计算ground effect地面效应

autorotation自转飞行high rate of climb悬停升限wind tunnel test风洞测试

patrol/loiter task巡航飞行

cruise speed巡航速度weight capability承重能力rate of climb 爬升率absolute ceiling绝对升限

service ceiling 实用升限optimum speed 最佳速度minimum rate of descent 最小下降率

maximum edurance/loiter time 最大续航时间maximum glide distance最大航行距离

maximum range最大航行里程maximum speed最大速度specific range比航程dihedral action上反作用

longitudinal/lateral trim equation纵向/横向配平方程shaft power轴功率power requirement需用功率

induced requirement诱导功率stability 稳定性static stability静稳定dynamic stability动稳定

incidence disturbance动稳定扰动的几种情况forward speed disturbance angular velocity disturbance

sideslip disturbance yawing disturbance

stability augmentation system增稳系统