Airbus Helicopters H225 vs Beechcraft King Air 360 Er vs Bell 525 Relentless vs Enstrom 480b

The Airbus H225 is a heavy, twin‑engine helicopter optimized for offshore and utility work; it typically offers the greatest passenger capacity of these four and strong mission radius for a rotorcraft, though its range is still generally below a fixed‑wing turboprop on long legs. The Beechcraft King Air 360ER is a twin‑turboprop airplane; it is the clear leader in range, trading vertical‑lift capability for faster cruise and substantially longer nonstop distance, with a cabin that commonly seats about 6–9 passengers in executive layouts (more in commuter configurations). The Bell 525 Relentless is a modern, large, twin‑engine helicopter positioned between the H225 and smaller light/medium helicopters; it carries fewer passengers than the H225 in typical configurations but can provide comparable class mission flexibility with competitive range for a helicopter. The Enstrom 480B is a light, single‑engine helicopter; it has the smallest passenger capacity (typically 4–5 including pilot) and the shortest range, but excels in lower operating complexity and training/light utility roles.