Airbus Helicopters H135 vs Airbus Helicopters H155 vs Leonardo Aw139 vs Leonardo Aw189

The Airbus H135 is a light twin helicopter typically used for EMS, police, training, and short-range corporate hops. It sits in the smallest category here, with a practical mission range roughly in the 300–400 nautical mile class depending on fit, and it generally carries 5–7 passengers in a VIP/corporate layout (or fewer when configured for medical equipment and crew). The Airbus H155 is a medium twin aimed at offshore support and executive transport. It offers more cabin volume and endurance than the H135, with range commonly around 450–500 nautical miles, and typically seats about 8–12 passengers depending on configuration. The Leonardo AW139 is a medium twin and a widely used workhorse for offshore, SAR, and corporate roles. Its range is broadly similar to, or slightly above, the H155 depending on tanks and payload (often around 500–600 nautical miles), and it typically carries about 10–15 passengers. The Leonardo AW189 is a larger “super-medium” twin optimized for offshore and long-range missions. It generally provides the greatest range here (often roughly 500–700+ nautical miles) and the highest passenger capacity, commonly about 16–19 passengers.