The "Gloster IV" Seaplane (British)
A 1928 technical report from NASA's Technical Reports Server, a record of the British Gloster IV racing seaplane, shown in general arrangement and structural detail drawings for engineers. The pictures are fine-line technical drawings: a front view with engine and float dimensions, a plan view with wing and float measurements, and exploded views of struts and fittings. A designer might take their clean dimensioned line work and schematic layout as reference for mechanical diagrams.
