Beechcraft King Air 360 Er vs Leonardo Aw189 vs Piper M600 Sls

The Beechcraft King Air 360ER and Piper M600 SLS are fixed‑wing turboprops, while the Leonardo AW189 is a twin‑engine helicopter, so their strengths differ by mission. The King Air 360ER sits in the twin‑engine business turboprop category and is optimized for longer regional trips; depending on configuration, it typically carries about 6–9 passengers plus crew and offers roughly 1,500–1,800 nautical miles of range, giving it the best point‑to‑point endurance of the three. The Piper M600 SLS is a single‑engine pressurized turboprop in the personal/light business class; it generally seats 4–6 passengers plus a pilot and delivers about 1,000–1,400 nautical miles of range, favoring owner‑operators and lower operating complexity. The AW189 is a medium twin helicopter designed for offshore, SAR, and utility transport; it commonly carries about 12–16 passengers, but its range is shorter—typically around 450–500 nautical miles—trading cruise efficiency for vertical lift and access to helipads and remote sites without runways.