Hello Fitter2,
No, I wasn't at Sywell, but I have been fascinated by the Luciole from the moment the first news of it filtered across from France around 2006. To be able to power an aeroplane with a small four stroke industrial engine seemed like the answer to a homebuilder's dream.
As soon as I saw that V-twin (Briggs & Stratton Vanguard or Honda), both have been used), I was pretty sure it was the Luciole. There is also the Czech SD-1 with the same engines, so I did need to do a search first.
Here's the next one: