第一项始终是图钉的来源。总体可信度是各份资料对上方所用开始和结束时间支持程度的加权平均;资料每比最新的一份旧 180 天,权重减半。
HeraldNet's Boeing timeline lists '1981, September 26: First flight of the 767. The 757 follows five months later.' and Wikipedia[2] gives the same date; Flight's milestone list shows 'First flight' for September 1981.
Says N767BA was rolled out on 4 August 1981 with 173 firm orders from 17 customers, flew on 26 September 1981, and the ten-month flight-test program used the first six aircraft.[1]
Milestone list gives rollout in August 1981, first flight and CF6-80A engine certification in September 1981, and notes Boeing keeps the first aircraft as a demonstrator while United takes the second.[1]
Boeing flight-test director Lew Wallick describes the 767 as "kind of like a large 737" and flight testing running on a five-day week in early 1982.[1]
Boeing's airport-planning document gives the 767-200 as a 216-seat (18 first, 198 economy) aircraft with 315,000 lb maximum takeoff weight.[1]
有遗漏或错误吗?用你自己的话说明:能佐证此图钉的链接、不同的开始或结束日期及理由,或缺失、有误的信息。AI 会对照此图钉的来源进行核实,搜索更好的来源,并添加任何支持你说法的页面。图钉自身的来源仍然最重要。AI 也会查看图片:显示的是别的东西或显示效果差的图片会被移到后面或替换。
The 767, even at 400,000 pounds, can be flown with two fingers.
although the shorter 767-200 is a little lacking in get-up-and-go
The Boeing 767 was pretty groundbreaking.
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