Bell 525 Relentless vs Enstrom 480b vs Piaggio Avanti Evo vs Piper M600 Sls

The Bell 525 Relentless and Enstrom 480B are helicopters, while the Piaggio Avanti EVO and Piper M600 SLS are fixed‑wing turboprops. In category terms, the Bell 525 is a super‑medium, twin‑engine turbine helicopter aimed at offshore and corporate missions; the Enstrom 480B is a lighter single‑engine turbine helicopter often used for utility, training, and short‑range executive transport. The Avanti EVO is a high‑speed, pressurized twin‑engine turboprop aircraft optimized for fast point‑to‑point travel; the M600 SLS is a pressurized single‑engine turboprop focused on owner‑pilot operations with advanced avionics and autoland capability. On range, the fixed‑wing turboprops generally travel farther and faster than the helicopters, with the Avanti EVO typically offering the longest range of the four, the M600 SLS also providing substantial cross‑country capability, and the Bell 525 and Enstrom 480B better suited to shorter legs and vertical-access missions. Passenger capacity follows a similar pattern: the Bell 525 and Avanti EVO are typically configured for more passengers than the Enstrom 480B and M600 SLS, with the Enstrom usually carrying the fewest and the M600 commonly seating around five to six depending on configuration.