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Canard Rotor/Wing (CR/W) Early History and X-50A Dragonfly Design Evolution

机译：Canard转子/机翼（CR / W）的早期历史和X-50A蜻蜓设计的演变

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摘要

Fifteen years after the Canard Rotor/Wing (CR/W) idea was first conceived, the X-50A Dragonfly is about tornachieve conversion from rotary wing flight to fixed wing flight and back to rotary wing flight. The purpose of thisrnpaper is to lay out the early history of CR/W and to tell how the idea became a demonstrator. The informationrncontained in this paper came from Boeing’s early documents and from interviews of some of the early participants.rnThe CR/W idea began in the aftermath of a NASA high speed rotorcraft study. From there, the first promisingrnapplication was a Manned Escort / Ground Attack vehicle. This application generated enough interest that the Navyrnbegan funding an Advanced Technology Demonstrator (ATD) that would serve as the basis for a Vertical Take-Offrn& Landing (VTOL) Unmanned Aerial Vehicle (UAV). Eventually, DARPA took over sponsorship of this projectrnand the X-50A Dragonfly is the result. Throughout the progression of this story, threeviews of the variousrnconfigurations are presented and discussed.
机译：在首次提出Canard旋翼/机翼（CR / W）构想的15年后，X-50A蜻蜓即将完成从旋翼飞行到固定翼飞行再回到旋翼飞行的转变。本文的目的是介绍CR / W的早期历史，并说明该想法如何成为演示者。本文包含的信息来自波音公司的早期文件以及一些早期参与者的采访。CR/ W的想法始于NASA高速旋翼飞机研究的结果。从那里开始，第一个有希望的应用是载人护航/地面攻击车辆。该应用程序引起了足够的兴趣，以至于海军开始资助一项先进技术演示器（ATD），该技术将作为垂直起降（VTOL）无人机（UAV）的基础。最终，DARPA接管了该项目的赞助，结果就是X-50A蜻蜓。在整个故事过程中，提出并讨论了各种配置的三个视图。

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