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YO-51 蜻蜓聯絡機

Ryan YO-51 Dragonfly
概觀
類型觀察機
乘員2人
首飛1940年
生產雷恩航空公司
產量3架
現況已取消
主要用戶美國陸軍航空兵團
技术数据
長度35ft6in(10.82m)[1]
翼展52ft(16m)
高度11ft1in(3.38m)
發動機1具普惠R-985-21英语Pratt & Whitney R-985 Wasp Junior星型引擎[1]
推力440hp(330kW)
性能數據
最大速度129mph(208km/h,112kn)
巡航速度107mph(172km/h,93kn)

YO-51 蜻蜓聯絡機(英語:Dragonfly)是一款由雷恩航空公司美國陸軍航空兵團設計和的觀察機。它是一款單引擎傘翼單翼飛機,專為最佳短距起降能力而設計。儘管三架原型機在測試性能非常優秀,但由於O-49更優秀的性能,因此該機並未被採納。

發展

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YO-51

YO-51 蜻蜓採用同類飛機的典型設計,並針對觀察和聯絡功能進行優化,使其能在各種場地起落。ref>Penfield 1941, p.31.</ref>蜻蜓是一款高翼支撐遮陽傘單翼飛機,配有固定尾輪起落架、兩座開放式駕駛艙、全跨度插槽和用於短距起降能力的福勒襟翼。[2]

YO-51在沒有襟翼的情況下可以在400feet距離內起飛,而在全襟翼的情況下,起飛距離僅為75feet。[3]蜻蜓能夠以低至30miles(48 km/h)的速度保持水平飛行,[4] 並據稱能夠在比飛機本身長度更短的距離內著陸。[5]

該機綽號「飛行摩托車」(英語:flying motorcycle)[6]美國陸軍航空兵團購買了三架YO-51並與O-49和O-50一起評估。[7]YO-51是評估的三款中最重的。[8]

儘管蜻蜓在俄亥俄州賴特機場英语Wilbur Wright Field進行的飛行測試[9]表現亮眼,[10]但O-49最終贏得合約,而O-51也就此被放棄了。[11]

參考

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註記
  1. ^ 1.0 1.1 Donald 1997, p.794.
  2. ^ Foottit, H. R. The Fowler Flap. Flying and Popular Aviation (Chicago: Ziff-Davis Publishing Co.). February 1942, 30 (2): 71. 
  3. ^ Fowler 1948, p.79.
  4. ^ Rowe 2006, p.22.
  5. ^ Wilson, Gill Robb. Genealogy of American Aircraft. Flying (Chicago: Ziff-Davis Publishing Co.). July 1954, 55 (1): 23. 
  6. ^ U. S. Army's "Flying Motorcycle". The Boston Globe (Boston, MA). May 25, 1941: C1. 
  7. ^ Pattillo 2001, p.137.
  8. ^ Adcock 2005, p.5.
  9. ^ The Dragonfly---Army's Newest Observation Plane. The Milwaukee Sentinel (Milwaukee, WI). February 23, 1940: 2. 
  10. ^ Army Tests New B-17C. The New York Times (New York). November 17, 1940 [2012-08-11]. (原始内容存档于2022-12-15). 
  11. ^ Merriam 2002, p.26.
書目

外部連結

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YO-51 蜻蜓聯絡機
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