Bell 525 Relentless vs Leonardo Aw139 vs Sikorsky S 92

The Bell 525 Relentless, Leonardo AW139, and Sikorsky S-92 all sit in the twin‑engine, IFR-capable, multi‑role helicopter market, but they span different weight and mission classes. The AW139 is generally categorized as a medium twin and is widely used for EMS, law enforcement, and short-to-mid range offshore and corporate missions. The Bell 525 is also a medium twin, positioned toward higher-end offshore and executive transport with a newer-generation design and typically a longer effective range than the AW139 in comparable configurations. The Sikorsky S‑92 is a heavier, large-cabin helicopter aimed at demanding offshore transport and SAR roles, trading higher operating weight for greater payload and cabin volume. In range terms, the AW139 is usually the shortest of the three, the Bell 525 typically sits in the middle with strong long-range capability for its class, and the S‑92 often achieves long-range performance while carrying more people or equipment. For passenger capacity, the AW139 commonly seats around 12–15, the Bell 525 is often in a similar band depending on layout, and the S‑92 is typically higher, commonly around 19 seats in offshore configurations.