« Reply #32 on: March 20, 2013, 01:34:25 pm »
Sorry Richard. Seemed to miss your question. It was a BSA M10 I believe. The same unit that that was put in some army bikes and semi side-valve 350cc? Not really up on it. It was cooled with added bits of shroud and an extra pulley with a fan on it blowing across the engine. Also had a pulley fed starter somewhat like the Bond Mk C optional extra, doubled with a pull starter from a lever if the battery could not hack it.
The Ladybirds used the Tigress four-stroke twin engine, Palmer design I think. A much more modern unit all round with possible adoption of a bike sized electric starter on a 12v system. Quite a powerful compact little unit which could have seen more service in a British MIcrocar. It was all a bit late on the scene though. Be interesting to put a Tiggy unit in a Trojan.
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