According to British Homebuilt Aircraft since 1920 by Ken Ellis and published by Merseyside Aviation Society in 1979 (2nd edition), the Storey Wonderplane was designated TSR-3 with TSR standing for Tom Storey Racer and the ‘3’ as it was ‘one up’ on TSR-2. By implication, he had not built any predecessors, at least not of his own design

Thanks David – That is what I suspected. I also understood it was built to comply with the Goodyear / Formula One air race rules, although it never actually raced, but with a cruise speed of 95 mph it wouldn’t exactly have challenged the Cosmic Winds, Cassuts and Rollason Betas that were competing in the UK in those days unless it has a much smaller engine up front now.