In chapter 5 , a new dynamic wake model is developed by employing the rotor free - wake method in chapter 2 , and is used to investigate the curve distortion during the conversion of tiltrotor aircraft between helicopter flight conditions and airplane flight conditions 在第二章方法的基础上，第五章建立一个倾转旋翼动态尾迹模型，使用该模型对倾转旋翼机倾转过渡状态的尾迹弯曲变形进行了研究，得出了一些结论。
During last august & september and february to april this year , the gfs pilots flew at scheduled times in a twin - engined jetstream j - 41 fixed wing aircraft around lantau island to collect wind and temperature data for the hko . with these data , we can better understand terrain - induced windshear around the airport 在去年8 、 9月及今年2至4月，每星期政府飞行服务队均安排一架双引擎捷流式定翼机环绕大屿山飞行，为天文台搜集风和温度数据。
Breakthroughs in modern gyroplane technology - an introduction to the advances in gyroplane technology and the emerging market opportunities for a new generation of gyroplanes ranging from small vtol & ustol gyroplanes to large vtol gyrodyne airliners or freighters with 20 ton payload capacity 现代旋翼机科技的突破-介绍旋科技的进步,以及新一代旋翼机的市场机会,从小型超短距离升降和垂直升降的旋翼机到可垂直升降,载重20吨以上的大型直升旋翼客机和货运机
Make use of the commercial software to built the virtual prototyping , and the kinetic and dynamic behaviors of the tilt - rotor have been systematically simulated and studied . the main research include as follows : the virtual prototyping model has been built , and on the platform of adams the dynamic property of virtual prototyping of v - 22 1 / 5 scale model ’ s rotor and wing system have been simulated and studied , according to the compared result to show the feasibility to analyze the tilt - rotor with the technology of virtual prototyping 本文的主要研究内容有:建立了多体系统动力学虚拟样机模型,在adams软件平台下对其旋翼/机翼系统的结构动力学特性进行仿真分析,并以v22倾转旋翼机1 / 5缩比模型为例进行对比分析,结果表明本文所建立的多体动力学模型能够应用于倾转旋翼机的运动学和结构动力学分析、研究。
Rotary - wing gunner : the helo gunner helps to navigate prior to combat , and once in combat , he scans for and engages the enemy while communicating his needs to the pilot ( ie that he needs to approach a target from a certain direction , or that he wants to employ specific armaments that require special delivery flight ) 旋翼机炮手：直升机炮手有助于战斗中的导航，一旦进入战斗，他便向飞行员通报其搜索和交战的需要，例如他需要一条确切的路线接近目标，或使用某种武器时需要特殊的飞行姿态。
