Development and Design
The Vickers Valparaiso was a derivative of the Vixen I for export purposes. It was renamed Valparaiso to distinguish it from the Vixen, which as it used classified government equipment, was unavailable for export. Two versions were available, one powered by the same Napier Lion as the Vixen, known as the Type 93 Valparaiso I, while the Type 92 Valparaiso II was powered by the Rolls-Royce Eagle engine Other than their engines, the Valparaisos were very similar to the Vixen I, both being single-bay biplanes with wooden wings and steel tube fuselages. Both versions were purchased by Portugal, who ordered 10 Valparaiso Is and four Valparaiso IIs, with the Lion-powered aircraft to serve as reconnaissance bombers and the lower powered Valpariso IIs to serve as advanced trainers. In 1928, Portugal decided to license produce a modified Valparaiso powered by a Gnome et Rhône Jupiter radial engine, and a single Valparaiso was modified by Vickers to use the Jupiter, followed by the production of 13 aircraft, designated Type 168 Valparaiso III by OGMA (Oficinas Gerais de Material Aeronáutico).
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