Airbus Helicopters H135 vs Airbus Helicopters H145 vs Airbus Helicopters H160 vs Bell 525 Relentless

The Airbus H135 is a light twin in the entry/EMS and training category, typically carrying about 5–7 passengers (plus crew) depending on configuration, with a practical range on the order of roughly 300–400 nautical miles. The Airbus H145 steps up into the light–medium twin class with a larger cabin; it commonly seats about 8–10 passengers and offers a broadly similar but often slightly better practical range than the H135, roughly around 350–450 nautical miles depending on fit and reserves. The Airbus H160 is a newer medium twin aimed at corporate, offshore, and public services; it generally carries around 10–12 passengers and provides a longer range, commonly cited around 450–600 nautical miles. The Bell 525 Relentless is in the super-medium category, designed for offshore and executive transport; it typically accommodates about 16 passengers and delivers the greatest range of this group, roughly around 600–700+ nautical miles depending on mission profile. Across the set, capacity and range generally increase with category: H135 smallest and shortest, then H145, then H160, with the 525 largest and longest-legged.