Single-engined freighter variant of the Viastra airliner, flown with the test registrations N-1 and O-6: N for Supermarine, which built the Viastra, and O for Vickers. Later G-ABVM. Aircraft never delivered to West Australian Airways and broken up at Brooklands. Note: BAE Systems Heritage say that O-6 was a second airframe but this appears to be incorrect.
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