Interesting. Seems to be very early yet, no real picture.
That looks familiar… Ninety degree v-twins can be good engines, especially if low speed operation (and thereby uneven firing interval) isn’t a major issue. I don’t like cam chains or cam chain tensioners in either application, and would not buy an aircraft engine with that feature. On the newer high cam Guzzi engines they hide the cam chains behind the cylinders to allow better air cooling.
(The actual Guzzi produced aircraft engine was based on the smaller 750 cc platform, what’s pictured is 1400 cc)
This brand new Verner 7 cyl radial is probably more in your taste Silvaire
Actually I think flat fours are the best solution for my needs (i.e. under 200 HP) Air cooled radials are good if you need a piston engine over say 350 HP – which I don’t. Over 350 HP is also where I think turbo-diesels may start to make technical sense because the cylinder count can be less than for a radial.
One more
a Viking engine
Celtico,
These people are wasting their time and money. LSA’s (and other light aircraft) should be powered by electric motors. This will become a reality sooner than we think given the promising developments in battery technology that are buzzing. Moore’s law will apply here as well, driven by the automotive industry finally waking up. Thanks Tesla..
OK, people, bring it on.. 
I prefer for now to the last drop of liquid fuel
I do not believe in electric engines. and less on Tesla cars
LSA’s (and other light aircraft) should be powered by electric motors.
I agree to that. For the time being, electric aircraft are all proof of concept kind of things. But several are available commercial.
