Other improvements included a redesigned cockpit to reduce pilot workload, redundant and improved electrical systems, modularized hydraulic systems, an advanced flight control system. The CH-47D has a maximun speed of 163 mph(142 knots). The CH-47D carrys twice heavier than CH-47A while the performance improved. With the advanced avionics, the CH-47D can operate at dark night and in nearly all weather conditions. An air-to-air refueling probe added on, too.

其他改进包括重新设计的可减轻飞行员工作负担的座舱、改进的多余度电子系统、模块化液压系统和先进飞行控制系统。D型最高速度为260千米/小时。D型的载重量为A型的两倍，而且这种载重情况飞行性能还要比A型更好一些。凭借着先进的电子系统，CH-47D能在夜暗和几乎所有气象条件下运作。另外还加装了空中加油装置。

The D models can also accommodate several kinds of internal payloads, vehicles, artillery pieces, 33 to 44 troops, or 24 litters plus two medical attendants. The "D" model can carry up to 26,000 pounds externally on its` three cargo hooks. The arms on board can be two side door mounting M60D 7.62mm machine guns on the M24 armament subsystem and a ramp mounting M60D using the M41 armament subsystem, the photo shows these.

D型也能在机舱内装载多种货物，如车辆、炮兵武器、33至44名士兵、24副担架加两名医疗人员。D型三个外挂钩合共的吊挂能力为11804千克。机载武器可采用两支安装在侧门上的M24武器系统上的M60D 7.62毫米机枪，和一支安装在尾门跳板上M41武器系统上的M60D机枪，详情见图。空军世界 http://www.airforceworld.com

In 1991, during Gulf War the CH-47D often worked as the only helicopter of transportation of Army to carry heavy cargo rapidly over the vast area. The cargo capacity and speed provided commanders and logisticians a capability unequalled by any Army in the world. During the ground phase the flanking maneuver executed by the 18 Airborne Corps was planned with the CH-47D as the keystone. In a representational air assault 5000 soldiers was trandported by a total of 126 UH-60 Blackhawks and 60 Chinooks. Just in the first day the CH-47Ds had lifted 131,000 gallons of fuel along with pallets of combat-configured ammunition for the next day's full attack. And forty separate refueling and rearming points were active in less than two hours. That is what the "keystone" means.

91年海湾战争时，CH-47D常常是美军唯一一种能够在宽阔地域上运送重型货物的直升机，其载重量和速度为美军指挥员和后勤官提供了优

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