Beechcraft King Air 360 Er vs Bell 525 Relentless vs Daher Tbm 960

The Beechcraft King Air 360ER and Daher TBM 960 are both pressurized, fixed‑wing turboprops, while the Bell 525 Relentless is a twin‑engine, fly‑by‑wire helicopter. In category terms, the King Air 360ER is a twin‑engine utility/business turboprop optimized for flexible missions and short or unimproved runways; the TBM 960 is a high‑performance single‑engine business turboprop focused on speed and efficient owner‑pilot travel; the Bell 525 is aimed at offshore, corporate, and high‑end utility roles where vertical lift and hover matter more than runway performance. For range, the King Air 360ER is typically the longest‑leg turboprop of the three in fixed‑wing terms, with a published maximum range around 1,800 nautical miles, while the TBM 960 is also long‑range for its class at roughly 1,400–1,700 nautical miles depending on reserves and payload. The Bell 525’s range is shorter than the fixed‑wing aircraft, commonly cited around 560 nautical miles (with variants and mission fit affecting this). In passenger capacity, King Air 360ER typically seats about 6–9, TBM 960 about 4–6, and Bell 525 usually about 16–20 depending on interior and mission configuration.