Hi to all! My name is Zdeněk, I'm from the Czech Republic and I make radial model engines. I started with small displacements, the most I built were five-cylinders with a capacity of 25 cm3, now I have two nine-cylinders with a capacity of 220 cm3 under construction, but that is too much for me. I will go back to smaller cubic volumes. My engines are always four-stroke, the smaller contents are for a glow plug, the larger ones with a spark plug. The plans are big for the future, so we'll see!