当前在陆军中服役的CH-47有三种型号，CH-47D、MH-47D和MH-47E(右图)。MH-47E特种作战直升机简称SOA，是CH-47的改型。通过改进主油箱和辅助油箱，机上能够携带更多燃料。MH-47D和E型具有空中加油能力。该机换装新型综合航空电子系统和多模式雷达，以提供执行复杂气象下渗透、撤出及支援特种任务的能力。空军世界 http://www.airforceworld.com

The radar system on MH-47E contains AV/ASH-137 Doppler radar & AN/APQ-174 radar which can provide terrain following, terrain avoidance, air-to-ground telemeter and terrain display. The navigation system includes GPS, terrain navigation and AN/ASH-145 course stance system. And there are laser, radar, missle warning systems, pulse jamming, chaff and flare dispensers, coutermeasure radio system. In addition, Forward Looking Infrared (FLIR) system and digital active display are equiped, too. MH-47E cockpit system contains a assignment management of 4 multi function displays and a secondary assignment system.

其雷达系统包括了AV/ASH-137多普勒雷达，有具备地形跟踪、地形回避、空对地测距和地形显示功能的AN/APQ-174雷达。导航设备有全球定位系统、地形参考导航系统和AN/ASH-145航向姿态参考系统。另有激光、雷达、导弹告警系统，脉冲干扰机、干扰物/曳光弹发射器和抗干扰无线电台。此外，还配有前视红外装置和数字式移动图形显示仪等。MH-47E在驾驶舱中增设了一个由4部多功能显示器组成的任务管理系统和一个任务辅助系统。

Besides 2 12.7mm machine guns, air-to-air can be carried on MH-47E. The rotors of it can be folded while landing and rotor braking is added, too. Suspensory system is fixed outside the fuselage. The payload is 14,000 pounds, maxium speed 297km/h, useful ceiling 8,700 feet. Now 50 MH-47E are deployed in Army special units.

改进后的MH-47E除装有两挺12.7毫米机枪外，还可以携挂空对空导弹。它的旋翼可以折叠，并安装有旋翼刹车装置。机舱外安装了悬吊回收装置。它的最大载重为6512千克，最大平飞速度297千米/小时，实用升限2900米。目前，美国陆军特种部队已装备了50架MH-47E。注意下图中的12.7mm加特林机枪，弹壳导管等。

They can be ferried 1,100 to 2,000 nautical miles unrefueled. In the MH-47E, there is an addition of an 800 gallon Robertson Auxiliary Fuel Tank in the cabin and Boeing designed sponson tanks with expanded capacity. The emulational test showed that the greatest potential vulnerability was associated with projectiles entering the fuel tanks in the volume above the liquid fuel. Such impacts would ignite the fuel vapor

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