Airbus Helicopters H225 vs Bell 525 Relentless vs Piper M600 Sls

The Airbus H225 and Bell 525 Relentless are large, twin‑engine helicopters aimed at offshore, utility, and VIP transport, while the Piper M600 SLS is a single‑engine turboprop airplane intended for personal and business travel. In range, the Bell 525 is designed for long offshore-style legs and is broadly comparable to the H225, with both typically operating in the mid‑hundreds of nautical miles depending on payload and reserves; the M600 SLS generally offers longer point‑to‑point range than either helicopter, commonly around 1,000+ nautical miles in cruise profiles. Passenger capacity also separates them: the H225 is the highest-capacity option, often configured to carry a large group of passengers (commonly well over a dozen) with two pilots; the Bell 525 usually seats fewer than the H225 but still supports multi‑passenger cabin layouts for shuttle or VIP missions. The M600 SLS is much smaller, typically seating one pilot plus about five passengers, trading vertical-lift flexibility for higher cruise efficiency and longer range.