Airbus Helicopters H155 vs Airbus Helicopters H160 vs Beechcraft King Air 360 vs Bell 525 Relentless vs Leonardo Aw139 vs Piaggio Avanti Evo

By category, the Airbus H155 and Leonardo AW139 are medium twin helicopters typically used for corporate shuttle, EMS, and offshore work; the Airbus H160 and Bell 525 Relentless are newer-generation medium twins positioned as premium/longer-range rotorcraft with advanced avionics and smoother ride goals. The Beechcraft King Air 360 is a pressurized twin‑turboprop fixed‑wing aircraft aimed at business and utility missions, while the Piaggio Avanti EVO is a high-speed pressurized twin‑turboprop business aircraft optimized for efficiency and cruise speed. On range, the fixed‑wing King Air 360 and Avanti EVO generally provide the longest reach, commonly around 1,500–2,000+ nautical miles depending on payload and reserves. Among helicopters, the H160 and Bell 525 tend to offer the longest ranges in their class (often roughly 450–650 nautical miles), with the AW139 and H155 typically in a similar but slightly shorter band (often about 400–600 nautical miles, mission‑dependent). For passenger capacity, these helicopters usually seat about 8–15 in typical configurations (AW139 often at the higher end; H155 and H160 commonly around 10–12; Bell 525 around 10–16). The King Air 360 and Avanti EVO are commonly configured for about 6–9 passengers in executive layouts, with higher-density seating possible.