Beechcraft King Air 360 Er vs Bell 525 Relentless vs Piaggio Avanti Evo vs Robinson R66

The Beechcraft King Air 360ER is a twin‑engine turboprop airplane aimed at efficient regional and special‑mission flying. It offers the longest range of this group at roughly 1,800–2,000 nautical miles and typically carries 6–9 passengers depending on interior and mission equipment. The Piaggio Avanti EVO is also a twin‑engine turboprop airplane, optimized for speed and cabin comfort; it generally carries about 6–7 passengers and has an approximate range around 1,400–1,700 nautical miles, usually less than the 360ER but competitive for business trips. The Bell 525 Relentless is a twin‑engine helicopter designed for higher‑end corporate and offshore missions; it typically seats around 12–16 people depending on configuration, with a range commonly around 500–600 nautical miles. The Robinson R66 is a light single‑engine turbine helicopter best suited to short hops, training, utility, and personal transport; it typically carries 4–5 occupants and has a range around 300–350 nautical miles.