Airbus Helicopters H225 vs Bell 525 Relentless vs Piper M600 Sls vs Sikorsky S 92

By category, the Piper M600 SLS is a single‑engine turboprop airplane for owner‑pilots and small business travel, while the Airbus H225, Bell 525 Relentless, and Sikorsky S‑92 are large twin‑engine helicopters typically used for offshore, corporate/VIP, and utility/transport missions. On range, the M600 SLS generally offers the longest point‑to‑point range (roughly 1,000+ nautical miles depending on conditions). Among the helicopters, the Bell 525 and Airbus H225 are broadly comparable and tend to be in the mid‑to‑high hundreds of nautical miles, while the S‑92 is also in that same general bracket, often optimized for offshore legs with reserves rather than maximum ferry distance. Passenger capacity separates them most clearly: the M600 SLS typically carries about five passengers plus a pilot (six seats total), whereas the helicopter models are configured for larger groups, commonly around 16–19 passengers in transport layouts (with VIP layouts reducing seats for comfort). Overall, M600 emphasizes speed and range; the helicopters emphasize vertical access and payload/cabin volume.