It was designed by Vickers as a development of its Vixen for export, being sold to Portugal and Chile.

It was renamed Valparaiso to distinguish it from the Vixen, which as it used classified government equipment, was unavailable for export.

[3] The Portuguese aircraft proved to be successful in service, with two carrying out a long distance tour from Portugal to its African colonies of Angola and Mozambique and back in 1928, with the success of the aircraft resulting in the decision to license-produce the Valparaiso III.

[3] The radial-powered Valparaisos also proved successful in Portuguese service, remaining operational until 1943, finally being replaced by Westland Lysanders.

[5] It was successful in Chilean service, resulting in an order for a further 18 modified aircraft, which reverted to the original name of Vixen, as the Vixen V.[6] Data from Vickers Aircraft Since 1908 [7]General characteristics Performance Armament