Airbus Helicopters H225 vs Bell 525 Relentless vs Leonardo Aw189 vs Piper M600 Sls

The Airbus H225, Bell 525 Relentless, and Leonardo AW189 are super‑medium, twin‑engine helicopters aimed at offshore transport, SAR, and utility work, while the Piper M600 SLS is a single‑engine turboprop fixed‑wing aircraft primarily for personal and business travel. In range, the M600 SLS typically offers the longest point‑to‑point capability (roughly 1,000+ nm, depending on reserves and conditions). The three helicopters generally fall into a similar class, commonly around the 450–550 nm range with typical passenger payloads, varying by configuration, fuel, and mission equipment. For passenger capacity, the helicopters are designed for multi‑passenger cabin layouts: the H225 is usually the largest of the three, often configured around the high‑teens to near twenty seats for offshore roles; the AW189 and Bell 525 are commonly in the mid‑teens in typical transport layouts. The Piper M600 SLS seats up to six (including the pilot), trading cabin volume for speed, efficiency, and longer range on runways rather than vertical lift.