Design Methods and Tools for Light Aircraft A spreadsheet approach to aircraft design Design Methods and Tools for Light Aircraft A spreadsheet approach to aircraft design Design Methods and Tools for Light Aircraft What is the optimum taper ratio? λ ≈ ??? A spreadsheet approach to aircraft design Design Methods and Tools for Light Aircraft For ease of manufacture λ ≈ 1.0? A spreadsheet approach to aircraft design Design Methods and Tools for Light Aircraft For minimum wing weight λ ≈ 0.2? A spreadsheet approach to aircraft design Design Methods and Tools for Light Aircraft For benign stall characteristics η ≈ 0.4 sep η ≈(1-λ) sep A spreadsheet approach to aircraft design Design Methods and Tools for Light Aircraft For benign stall characteristics λ ≈ 0.6? A spreadsheet approach to aircraft design Design Methods and Tools for Light Aircraft For minimum vortex drag λ ≈ 0.4? A spreadsheet approach to aircraft design Design Methods and Tools for Light Aircraft Other factors? •twist •t/c •sweep A spreadsheet approach to aircraft design Design Methods and Tools for Light Aircraft So what is the optimum taper ratio? λ ≈ ?? A spreadsheet approach to aircraft design