The Ka-27 is the anti-submarine helicopters of Russian Navy. And the Ka-28 is the export variation of Ka-27, as well as the Ka-29, a naval combat and transport helicopter developed from Ka-27. Three of them are all designed and manufactured by the Kamov Design Bureau. The first prototype flew in December 1974. The Nato name the Ka-27 and Ka-28 Helix. More than 60 Ka-27/28s and 15 Ka-29s are served in Russia.

卡-27是俄罗斯海军的反潜直升机，卡-28是其出口型，卡-29是其武装运输改型。上述三种直升机均由俄罗斯卡莫夫设计局设计。卡-27原型于1974年12月首飞。北约命名为卡-27“螺旋”。目前超过60架卡-27/28和15架卡-29在俄罗斯服役。

The Ka-27 can detect submarines at a depth of 500m and running at speeds up to 75kph. The helicopters can operate in conditions up to sea state 5 and at ranges up to 200km from the take-off pads. The operating time of one mission could be 4.5h, with 45min fuel remained. So it is able to work in all weather conditions and destroy the giant submarines by its 533mm torpedo. In a combat mission, the Ka-27 alway act in a dual team, one for detection, one for hunting.

卡-27可以捕获潜深500米，时速75千米/小时的潜艇。该机可在5级海况下操作，作战距离达200千米。任务巡航时间可达4.5小时，且有45分钟余油。因此该机几乎可在任何气象下操作，并使用其406mm鱼雷击毁潜艇。在攻击任务中，通常双机编队，一架负责探测，一架负责攻击。

Like other Kamov designs, the Ka-27 is fitted with a coaxial main rotor with folding blades. The composite blades are fitted with an electric thermal de-icing system. The Ka-27 is allowed to be stowed in small shipborne hangars by the aerodynamic and design parameters. The 4-point landing gear provides for safe take-off and landing. Corrosion-resistant materials have been used in the construction to ensure normal operation in active sea environments. The ballonet flotation devices for emergency landing on water is fitted.

和其他卡莫夫直升机一样，卡-27采用共轴可折叠双螺旋桨。具体为两副全铰接式三片桨叶共轴反转旋翼系统。可折叠桨叶为全复合材料结构。桨毂采用50%钛合金和50%钢材料。该系统结构紧凑、有效载重大，操纵简便，可减轻驾驶员悬停和着舰时的工作负担。悬停时可不受风向的干扰。复合材料桨叶装有电热除冰系统。卡-27的飞行性能使其能在较小的舰艇上使用，四点式起落架确保了起降的安全。起落架不可收放，装有油气减震器。前起落架可自由转向，后起落架支柱装在枢轴上，可使主机轮向前转动，减少对机头下方雷达信号的干扰。机身采用传统的半硬壳式结构，广泛采用了钛合金主部件。尾锥为复合材料结构。机身两侧带有充气浮筒，紧急情况下，可在水上着陆。为适应在海上使用，机身材料采用抗腐蚀金属。机上装有有充气气囊，可确保卡-27在海上迫降漂浮。全金属半硬壳式结构尾梁支撑张臂式结构尾翼，装有固定倾角的水平安定面和升降舵、两个端板式垂直安定面和方向

[1] [2] [3] [4] [5] [6] [7] 下一页