CubCrafters has introduced a turbine-powered version of its Carbon Cub UL, putting a French regenerative turboprop engine on the nose of one of the lightest high-performance backcountry airplanes currently in production. The Carbon Cub ULT is based on the already impressive Carbon Cub UL platform, which traces its roots to CubCrafters’ long-running effort to modernize the classic Piper Super Cub. The ULT iteration replaces the UL’s Rotax piston …