ANW - You are quite correct. It was the DAIR web site I should have included and is indeed the engine I was referring to. Less haste, more speed (in copying and pasting). Nice to know there is competition out there tho isn't it, and a longer line that JOE has to go to the end of.
Edited to add - I see Weslake (who specialise in piston engine prototyping, testing, design & development) are involved with both engines (building the DAIR and is the proposed builder of the Gemini) so I wonder what is going on there, are they then two distinct and seperate commercial enterprises (competitors) or is there a bit of smoke and mirrors. See the DAIR is being licence manufactured by Howells Aero Engines as the HAE-100 in Manchester also.