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Kuechemann's weight model as applied in the first Greener by Design Technology Sub Group Report: a correction, adaptation and commentary

机译:库埃曼的权重模型在设计技术小组报告的第一个Greener中应用:更正,改编和评论

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In the first report of the Greener by Design Technology Sub Group, the author made an error in deriving modern values for the empirical constants in the weight model, taken from Kuechemann, that was used in the study of fuel efficiency of a range of aircraft designs. In this note the error is corrected and the weight model is also extended to take account of the observed variation with range of the ratio of design payload to maximum payload. This leads to the conclusion that the effect of design range on fuel efficiency is substantially greater than suggested in the Greener by Design report. The conclusion, which is in agreement with a correlation by Nangia of existing aircraft data, indicates that a modern aircraft with a design range of 15,000km burns approximately twice as much fuel per passenger-km as one with a design range of 4,000km. This powerfully reinforces the call made in the Greener by Design reports for in-depth studies to be made of the use of medium-range aircraft for long-distance travel.
机译:在“更环保的设计技术”小组的第一份报告中,作者在推导重量模型中的经验常数的现代值时出错,该值取自库切曼,该模型用于研究各种飞机设计的燃油效率。在本说明中,错误已得到纠正,权重模型也进行了扩展,以考虑到观察到的设计有效载荷与最大有效载荷之比的变化。这得出的结论是,设计范围对燃油效率的影响远大于Greener by Design报告中提出的建议。结论与Nangia与现有飞机数据的相关性一致,表明结论是,设计范围为15,000km的现代飞机每位乘客每公里燃烧的燃油大约是设计范围为4,000km的现代飞机的两倍。这有力地增强了《绿色设计》报告中呼吁对使用中程飞机进行长途旅行进行深入研究的呼吁。

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