Beechcraft King Air 360 Er vs Bell 525 Relentless vs Cessna 208b Grand Caravan Ex vs Piper M600 Sls

The Beechcraft King Air 360ER and Cessna 208B Grand Caravan EX are fixed‑wing turboprops, while the Bell 525 Relentless is a twin‑engine helicopter and the Piper M600 SLS is a single‑engine turboprop. For range, the King Air 360ER is the longest‑legged of the group among airplanes, typically around 1,800–2,000+ nautical miles depending on payload and reserves. The Piper M600 SLS is also long‑range for its class at roughly 1,500 nautical miles. The Grand Caravan EX generally sits shorter, commonly around 900–1,200 nautical miles, optimized for utility and short/rough-field work rather than maximum legs. The Bell 525’s range is typically about 500–600 nautical miles, trading fixed‑wing efficiency for vertical lift and point‑to‑point access. For passenger capacity, the Grand Caravan EX usually carries the most seats in commuter layout (often up to 14), the King Air 360ER typically seats around 8–9 in executive configuration, the Bell 525 commonly carries about 12–16 depending on layout, and the Piper M600 SLS is a six‑seat aircraft.