已确认日期确定性: 已确认已公布为确定日期来源对日期的表述有多确定：已确认、已排期、预估、已推迟或未核实。显示所有“已确认”的图钉可信度 79%总体可信度: 79%该图钉的来源和参考资料对其日期的支持程度。包括来源在内的 5 份资料对图钉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，权重减半显示所有可信度不低于 75% 的图钉
Airways: "Today, in 1983, The prototype De Havilland Canada (DHC), Dash 8-100 (C-GDNK), operated its maiden flight"; BAE Systems Heritage: "flew for the first time on 20th June 1983".[1]The prototype DHC-8 Dash 8-100, registered C-GDNK, flew for the first time on 20 June 1983, launching the twin-engine 37-seat turboprop that replaced the four-engine Dash 7 concept.
1.00