Leonardo Aw139 vs Leonardo Aw189 vs Sikorsky S 76d vs Sikorsky S 92

The Leonardo AW139 and Sikorsky S‑76D sit in the medium twin category, commonly used for offshore crew change, EMS, and corporate transport. Typical passenger capacity is about 12–15 for the AW139 and about 8–12 for the S‑76D depending on interior and mission fit. In range, both are broadly similar, generally in the roughly 350–450 nautical mile class, with exact figures varying by fuel options, payload, and reserves. The Leonardo AW189 and Sikorsky S‑92 are larger “super‑medium” class twins aimed primarily at offshore and SAR roles with more cabin volume and payload. Typical passenger capacity is about 16–19 for the AW189 and about 18–19 for the S‑92 in offshore layouts. Range is also higher on average than the medium twins, generally around the 450–600+ nautical mile class depending on configuration. Overall, AW139 vs S‑76D is often a choice between cabin size and payload versus a lighter, efficient platform, while AW189 vs S‑92 is typically driven by required seat count, offshore performance margins, and available cabin space.