Beechcraft King Air 360 Er vs Bell 525 Relentless vs Embraer Legacy 650 E vs Piper M600 Sls

The Beechcraft King Air 360ER and Piper M600 SLS are pressurized single‑pilot turboprops, but they serve different missions. The King Air 360ER is a twin‑engine utility/corporate aircraft aimed at flexible short and medium legs with strong runway performance; it typically carries about 6–9 passengers depending on configuration and offers long turboprop range on the order of roughly 1,500+ nautical miles. The M600 SLS is a single‑engine personal/business turboprop, generally seating about 4–6 passengers with a typical range around roughly 1,400–1,500 nautical miles. The Bell 525 Relentless is a large, long‑range twin‑engine helicopter rather than a fixed‑wing aircraft, optimized for point‑to‑point access and offshore/VIP roles. It commonly seats around 12–16 and has a range roughly in the 500–600+ nautical mile class depending on payload and reserves. The Embraer Legacy 650E is a large‑cabin long‑range business jet, built for higher speed and intercity missions. It typically accommodates about 10–14 passengers and offers transcontinental-to-near-intercontinental range, roughly around 3,900 nautical miles.