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

All four are in the “super-medium” twin category used for offshore transport, SAR, and VIP work, with the Sikorsky S-92 generally regarded as the heaviest and most established offshore airliner-style platform. For range, the Bell 525 Relentless and Leonardo AW189 typically lead or match the top end of the class depending on fuel fit and mission profile, with the Airbus Helicopters H175 close behind; the S-92 is competitive in offshore configurations but is often optimized around payload and robustness rather than being the absolute longest-legged in typical airline-style cabin layouts. On passenger capacity, the S-92 usually offers the highest practical seating in offshore service (commonly around 19), while the H175, AW189, and 525 are commonly configured around the mid-to-high teens (often 16–19) depending on interior, weights, and regulatory requirements. In short, the H175, 525, and AW189 cluster closely as modern super-mediums balancing range and cabin efficiency, while the S-92 tends to stand out for mature offshore capability and higher-capacity layouts.