Bell 525 Relentless vs Leonardo Aw189 vs Pilatus Pc 24 vs Robinson R66

The Bell 525 Relentless and Leonardo AW189 are both super‑medium, twin‑engine helicopters aimed at offshore, corporate, and SAR-style missions, while the Pilatus PC‑24 is a light business jet and the Robinson R66 is a light, single‑engine turbine helicopter primarily for private, utility, and training use. In range terms, the PC‑24 generally offers the longest reach at roughly 2,000 nautical miles class, suitable for true point‑to‑point regional jet travel. The Bell 525 and AW189 sit in a similar long‑range helicopter bracket, typically around the 450–500+ nautical mile class depending on configuration, with the 525 often marketed toward the higher end of that band. The R66 is notably shorter‑legged, commonly around the 300 nautical mile class. Passenger capacity also separates them: the PC‑24 typically seats about 6–10 passengers in executive layouts, the Bell 525 and AW189 commonly carry around 12–16 passengers (with higher-density options possible), and the R66 usually carries a pilot plus up to four passengers.