These engines are based on the Mac Minarelli products for Go-karts. The larger versions of this brand, which are adapted by Avio are used in great giant scale models of aircraft and UAV.

"Aviomac - 240 B engine"

"Aviomac - Logo"

-AvioMac prepairs the Mac Minarelli engines for their use in aircraft, especially the bigger, horizontally-opposed 4- and 6-cylinder ones like the 160, 240 and 250.

"Aviomac 160 B4"

"Aviomac 160 B4 diagram"