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【环球军事报道 记者 马俊】作为中俄战略合作的标志性项目之一,两国联合研制的重型直升机向来是外界关注的热点,近日俄罗斯媒体还传出该项目进展不顺的消息。在9日开幕的第三届天津直升机博览会上,中俄联合研制的重型直升机首次露出真容,扫清了传闻中的雾霾。中航工业直升机副总工程师黄传跃8日接受《环球时报》采访,就众多网友感兴趣的问题进行了回应。
相关专家介绍说,中国已经基本掌握第三代直升机技术,包括先进的旋翼设计,复合材料机体、综合航电设备,在发动机领域也达到第二代或二代半的水平。整体上讲,在13吨级以下的直升机,我们都能做到。俄罗斯也承认,中国在复合材料和航电方面已经超过他们,例如米-26的桨叶还是全金属制造的,驾驶舱的设备也很落后。
但中国在重型直升机总体设计方面还缺乏经验。重型直升机有三大关键技术:大尺寸、大载荷、强干扰(气动干扰),这也是它与中小型直升机的最大区别。例如中国研制的最大AC313中型直升机的旋翼长度为19米,而中俄重型直升机的旋翼可能将长达30米。这不是简单地放大,而涉及到加工、材料和设计等诸多问题,还需要专门攻关。因此我们希望借助俄罗斯在总体设计方面的丰富经验,尽量减少弯路,并学习俄罗斯在使用寿命和重量控制等方面的经验,通过合作逐步了解和掌握相关技术。至于动力系统,新研制的重型直升机将采用乌克兰的D136涡轴发动机,目前我们还没有符合要求的发动机型号,且差距甚大。
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