Airbus Helicopters H225 vs Bell 525 Relentless

The Airbus Helicopters H225 and the Bell 525 Relentless are both large, twin‑engine, long‑range helicopters aimed at offshore energy, search and rescue, and government/VIP transport, but they sit in slightly different size and mission emphases. The H225 (Super Puma family) is a proven heavy-class helicopter with a long operational track record and is commonly used for demanding offshore and SAR roles. The Bell 525 is a newer “super‑medium” design positioned between traditional medium and heavy types, emphasizing modern avionics and efficient long‑range offshore transport. In range terms, both are designed for extended overwater missions; the H225 is typically associated with very long offshore legs depending on configuration, while the 525’s design target is similarly long range for deepwater oil and gas routes, with real-world capability varying by payload, reserves, and installed equipment. For passenger capacity, the H225 generally carries more people in high-density seating, reflecting its larger cabin and heavier category, whereas the Bell 525 typically carries fewer passengers than the H225 but remains optimized for comfortable offshore transport layouts.