Bell 525 Relentless vs Piaggio Avanti Evo vs Pilatus Pc 24 vs Robinson R66

The Bell 525 Relentless and Robinson R66 are helicopters, while the Piaggio Avanti EVO and Pilatus PC-24 are fixed‑wing airplanes. In category terms, the Bell 525 is a super‑medium, twin‑engine turbine helicopter aimed at offshore/utility and executive transport; the R66 is a light, single‑engine turbine helicopter typically used for private, training, and light utility missions. The Avanti EVO is a pressurized twin‑turboprop business aircraft optimized for efficient regional trips, and the PC‑24 is a twin‑engine light business jet designed for faster travel and strong short/rough‑field capability. Range generally favors the fixed‑wing aircraft: the PC‑24 typically offers the longest legs, followed by the Avanti EVO, while the Bell 525 and then the R66 tend to have shorter practical ranges due to helicopter efficiency limits. Passenger capacity also trends higher in the larger platforms: the Bell 525 and PC‑24 commonly seat around 8–10 passengers in executive layouts, the Avanti EVO typically carries about 7–9, and the R66 is usually configured for about 4 passengers plus a pilot (five seats total).