Airbus Helicopters H145 vs Bell 525 Relentless vs Leonardo Aw139 vs Leonardo Aw169 vs Sikorsky S 76d

The Airbus Helicopters H145 and Leonardo AW169 sit in the lighter twin-engine category, typically used for EMS, law enforcement, and short-to-medium corporate missions. In general terms, their range is in the mid-hundreds of nautical miles, and passenger capacity is usually around 7–9 (with flexible layouts depending on mission equipment). The Sikorsky S‑76D is a midsize twin optimized for offshore and executive transport; it generally offers longer legs than the light twins and commonly seats about 8–12 passengers in typical transport configurations. The Leonardo AW139 is a larger, medium twin with a higher useful load and cabin volume, often configured around 12–15 passengers, and it generally delivers strong medium-range capability suitable for offshore and SAR roles. The Bell 525 Relentless is a newer, super‑medium class helicopter aimed at longer-range offshore and high-speed transport; it typically targets the greatest range of this group and comparable or slightly higher passenger capacity than AW139, depending on layout and mission fit.