The Cierva "Autogiro" Mark III (British) : Armstrong-Siddeley "Genet Major" Engine
This is a 1930 NACA aircraft circular issued by the NASA Technical Reports Server, documenting the British Cierva Autogiro Mark III with its Armstrong-Siddeley Genet Major engine, aimed at engineers and aviation researchers. The page holds three-view general arrangement drawings with dimensioned plans, front and side elevations, and a tabulated list of areas and control surfaces, offering a designer a clean technical diagram vocabulary: labelled dimension lines, scale bars, and tabular specification blocks.
