Airbus Helicopters H175 vs Airbus Helicopters H215 vs Bell 525 Relentless vs Leonardo Aw189 vs Sikorsky S 92

All five are medium/large twin-engine helicopters aimed at offshore transport, SAR, and utility roles, but they differ in size and performance. The Airbus H175 and Leonardo AW189 sit in the “super-medium” class, typically carrying around 16–19 passengers in offshore layouts, with broadly comparable practical ranges that are generally in the mid-hundreds of nautical miles depending on payload and reserves; the AW189 is often positioned as slightly more payload-flexible, while the H175 is widely optimized for offshore comfort and efficiency. The Airbus H215 is a larger, more traditional heavy utility design (Super Puma family), commonly configured for roughly 19 passengers and used for rugged transport and SAR, with range that can be similar or somewhat higher with auxiliary fuel but with older-generation efficiency. The Bell 525 Relentless is a newer-generation “super-medium” with fly-by-wire, typically marketed around 16 passengers, and is aimed at longer legs and higher cruise efficiency in its class. The Sikorsky S-92 is the heavyweight offshore standard, usually 19 passengers, generally offering strong hot-and-high and overwater capability with competitive, mission-dependent range in the same broad bracket but with higher mass and operating footprint.