Bell 525 Relentless vs Enstrom 480b vs Piper M600 Sls vs Sikorsky S 92

The Bell 525 Relentless and Sikorsky S-92 are transport-category, twin‑engine helicopters aimed at offshore, corporate shuttle, and utility missions; the 525 is a newer “super‑medium” class with long-range capability, while the S‑92 is a larger heavy/medium-lift platform optimized for higher payload and offshore passenger carriage. Typical range for the Bell 525 is roughly in the 500–600 nautical mile class, whereas the S‑92 is commonly in the 480–540 nautical mile class depending on configuration. Passenger capacity also diverges: the 525 is generally configured around 12–16 passengers, while the S‑92 typically carries about 16–19 in offshore layouts (and can be arranged differently for VIP or utility roles). The Enstrom 480B is a light, single‑engine piston helicopter intended for training, patrol, and light utility work; its range is typically around 250–350 nautical miles with seating usually for 4–5 occupants including the pilot. The Piper M600 SLS is not a helicopter but a single‑engine turboprop airplane; it offers the longest range here at about 1,000–1,500 nautical miles with seating typically for 5–6, prioritizing fast personal and business travel over vertical-lift utility.