设计目的“黑鹰”直升机空重和有效载重的不断增加将导致其机动能力、高速飞行性能和失速特性的降低。西科斯基公司投资研制的新型复合材料桨叶以及对旋翼的其它改进对提高现有“黑鹰”及新改型“黑鹰”直升机的机动性、高速飞行性能及失速性能将大有收益。 “黑鹰”直升机的原型UH-6OA设计起飞总重为7485千克、最大总重为9185千克。而目前美国陆军所使用的标准型UH-6OL,由于选用了改 Design Objectives The increasing weight and effective payload of the Black Hawk helicopter will result in reduced maneuverability, high-speed flight performance and stall characteristics. The new composite blades developed by Sikorsky and other improvements to the rotors will greatly benefit the maneuverability, high-speed flight performance and stalling performance of existing Black Hawk and new Black Hawk helicopters. The prototype of the Black Hawk helicopter, UH-6OA, has a take-off total weight of 7485 kg and a maximum total weight of 9185 kg. At present, the standard UH-6OL used by the U.S. Army is changed due to the selection