Airbus Helicopters H155 vs Bell 525 Relentless vs Leonardo Aw139 vs Leonardo Aw169 vs Sikorsky S 76d

By category, the Airbus Helicopters H155 and Sikorsky S-76D sit in the medium twin segment often used for offshore, corporate, and EMS roles, while the Leonardo AW139 is a larger, heavier medium twin with stronger offshore and utility credentials. The Leonardo AW169 is the lighter “intermediate” twin, positioned below the AW139 for operators wanting similar modern avionics with lower size and operating footprint. The Bell 525 Relentless is a modern “super-medium” twin, generally classed above H155/S-76D and closer to (or beyond) AW139 in capability, aimed heavily at offshore and long-range transport. On range, the AW169 typically offers the shortest reach, with H155 and S-76D commonly in the mid-range band for their class. The AW139 and Bell 525 generally provide longer legs, with the 525 often marketed for particularly strong range/payload flexibility in the super-medium space. For passenger capacity, the AW169 usually carries the fewest, H155 and S-76D are mid-pack, and AW139 and Bell 525 are typically configured to carry more passengers, especially in offshore seating layouts.