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Scaling trajectories in civil aircraft (1913-1997)

机译：民用飞机的缩放轨迹（1913-1997）

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摘要

Using entropy statistics we analyse patterns in terms of changes in the rations among product characteristics of 143 designs in civil aircraft. Two allegedly dominant designs, the piston propeller DC3 and the turbofan Boeing 707, are shown to have triggered a scalling trajectory at the level of the respective firms. Along these trajectories different variables have been scaled at different moments in time: this points to the versatility of a dominant design which allows a firm to react to a variety of user needs. Scalling at the level of the industry took off only after subsequently reengineered models were introduced, like the piston propeller Douglas DC4 and the turbofan Boeing 767. The two scaling trajectories in civil aircraft corresponding to the piston propeller and the turbofan paradigm can be compared with a single, less pronounced scaling trajectory in helicopter technology for which we have data during the period 1940-1996. Management and policy implications can be specified in terms of the phases of codification at the firm and the industry level.
机译：使用熵统计，我们根据民用飞机中143个设计的产品特征之间的比率变化来分析模式。活塞推进器DC3和涡轮风扇波音707这两个据称占主导地位的设计在各自公司的水平上触发了缩放轨迹。沿着这些轨迹，在不同的时间点对不同的变量进行了缩放：这表明了主导设计的多功能性，这使公司能够响应各种用户需求。只有引入了随后重新设计的模型（例如活塞螺旋桨Douglas DC4和涡扇波音767）之后，行业层面的呼唤才开始。民用飞机中与活塞螺旋桨和涡扇范式相对应的两个缩放轨迹可以与我们获得了1940-1996年期间数据的直升飞机技术中单个的，不太明显的缩放轨迹。可以根据公司和行业级别的编纂阶段来指定管理和政策含义。

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