A collaboration between the Australian Aircraft Consortium and UK company Westland, the A20 Wamira II was a development of the proposed (and not completed) side-by-side A10 Wamira trainer. The AAC was formed by the three main Australian aircraft manufacturers - CAC, GAF and Hawker de Havilland. Westland had no hand in designing the A20’s tandem-seat fuselage, but was involved in the selection and fitting of avionics for AST.412.
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