第39师团 (日本陆军)

机舱最大宽度为 12 ft (3.6 m)。波音使其能避开许多天气干扰。平流307型可携带5个机组成员及33名旅客。層客

{ |{ { Infobox aircraft type |type=双发活塞短程窄体干线民用飞行器 |manufacturer= 波音 |designer= |first flight= 1938年12月31日 |introduced= 1940年7月8日 |retired= 1975年 |number built= 10 |status= |primary user= 环球航空 |more users= 泛美航空 United States Army Air Forces |unit cost=$315,波音000 (in 1937 when ordered)[http://www.aviation-history.com/boeing/307.html "Boeing 307 Stratoliner entry at."] The Aviation History Online Museum. Retrieved: January 28, 2012. |developed from= Boeing B-17 Flying Fortress |variants with their own articles= }} |} 波音307型平流层客机是第一架拥有客舱增压系统的商用运输机。机舱内压力为8,平流000 ft (2,440 m)高度的压力。这一特性使其有能力在20,層客000英尺（6000米）高空进行巡航，所以飞机飞行在14,波音700 ft (4,480 m)高度时， 規格參數 (Boeing 307) 參見 参考文献 引用 来源 Bowers,平流 Peter M. Boeing Aircraft since 1916. London: Putnam, Third edition, 1989. ISBN 0-85177-804-6. Bridgman, L. Jane's All the World's Aircraft 1942. London: Sampson Low, Marston & Co., 1942. Ford, Daniel. "First and Last 'Strat': Boeing's Model 307 and its Survivors". Air Enthusiast, No. 110, March/April 2004, pp. 54–60. Stamford, UK: Key Publishing. ISSN 0143-5450. Hardy, Mike. "The Stratoliner Story (Part 1)." Air International, Vol. 46, No 1, January 2004, pp. 21–24. Stamford, UK: Key Publishing. ISSN 0306-5634. Hardy, Mike. "The Stratoliner Story (Part 2)." Air International, Vol. 46, No 2, February 2004, pp. 69–72. Stamford, UK: Key Publishing. ISSN 0306-5634. Taylor, H.A. "Ten Big Boeings ... The Stratoliner Story". Air Enthusiast'', Ten, July–September 1979, pp. 58–67. Bromley, UK: Fine Scroll. 外部連結 Video Courtesy of *Bomberguy Aviation Historian Coast to Coast on Four Motors September 1940 Popular Mechanics History of the Boeing 307 by Boeing Historical Division 波音飞机它是層客第一架在机组成员里包括飞行机械师的陸基飛機（部分船型水上飛機在早些時候已經在機組成員中增加飛行機械師了）。压力差为2.5 psi (17 kPa)，波音