Airbus Helicopters H155 vs Leonardo Aw109 Grand New vs Leonardo Sh09

In category, the Airbus Helicopters H155 is a medium twin-engine helicopter typically positioned for offshore support, EMS, and high-end corporate transport, offering more cabin volume and payload than light twins. The Leonardo AW109 GrandNew is a light twin-engine helicopter optimized for speed and executive missions, with a smaller cabin and generally lower operating weight than the H155. The “Leonardo SH09” is not a recognized, current Leonardo helicopter model designation in mainstream civil product lines; if you meant the Swiss Helicopter/Helvetic SH09 (often referred to as a light single), it would sit in a lighter category than both the H155 and AW109. On range, the H155 generally offers the longest practical range of the three due to larger fuel capacity and medium-class performance, commonly in the mid-hundreds of nautical miles depending on configuration. The AW109 GrandNew offers strong range for a light twin, typically somewhat less than the H155 but competitive for executive point-to-point flying. A light single in the SH09 class would typically have a shorter range than both twins, varying widely with fuel and payload. On passenger capacity, the H155 usually seats more passengers in a spacious layout (often around 8–13 depending on mission), the AW109 GrandNew typically carries fewer (commonly 6–8), and an SH09-class light single generally carries the least (often around 5–6).