The Short "Valetta" commercial seaplane (British) : a high-wing all-metal twin-float monoplane
A 1930 NACA aircraft circular from the NASA Technical Reports Server, issued as a technical report for engineers and aviation researchers, presenting the British Short Valetta twin-float commercial seaplane. The page holds three-view drawings with plan, side and front elevations, dimension lines, a component area table and a scale bar, all in plain black linework on white. A designer might take its clean engineering diagram layout, dimensioned technical callouts and numbered-figure captioning as a model for precise schematic graphics.
