Airbus Helicopters H225 vs Leonardo Aw189 vs Piper M600 Sls vs Robinson R66

The Airbus H225 and Leonardo AW189 are heavy and super‑medium helicopters respectively, built for offshore, SAR, and utility work with high payload and endurance. The H225 is the larger, typically carrying around 16–19 passengers in transport layouts and offering long-range capability on the order of roughly 450–500+ nautical miles depending on configuration. The AW189 is smaller but still multi‑engine and IFR-capable, commonly seating about 12–16 passengers with a typical range roughly in the 430–500 nautical mile class. The Robinson R66 is a light, single‑engine helicopter aimed at lower-cost private, training, and light utility missions. It carries about 4–5 occupants (including the pilot) and has a much shorter practical range, roughly around 300 nautical miles. The Piper M600 SLS is not a helicopter but a single‑engine turboprop airplane, generally seating 5–6 occupants. As a fixed‑wing aircraft it typically offers the longest range of this group, about 1,400–1,500 nautical miles, trading vertical‑lift capability for speed and efficiency.