Airbus Helicopters H155 vs Bell 429wlg Globalranger vs Leonardo Aw109 Grand New vs Leonardo Aw139

The Airbus Helicopters H155 is a medium twin positioned for executive and offshore-type missions, offering a solid blend of range and cabin volume for roughly 12–13 passengers depending on layout. Bell’s 429WLG GlobalRanger sits in the light twin category, typically carrying about 6–7 passengers with shorter range than the larger medium twins, but with efficient performance for EMS, law enforcement, and corporate transport. The Leonardo AW109 Grand New is also a light twin, generally configured for about 6–7 passengers; it emphasizes speed and VIP comfort, with range broadly comparable to other light twins and usually below the medium class aircraft. The Leonardo AW139 is a true medium twin with the largest cabin of the group, commonly accommodating about 12–15 passengers and delivering the longest practical range and mission flexibility among these four, especially for offshore transport, SAR, and utility roles. Overall, the 429WLG and AW109 Grand New are lighter, smaller-cabin choices, while the H155 and particularly the AW139 step up in passenger capacity and typical mission radius.