Leonardo Aw189 vs Piper M600 Sls vs Robinson R66 vs Sikorsky S 92

The Leonardo AW189 and Sikorsky S-92 are medium, twin‑engine helicopters aimed at offshore, SAR, and utility work; both offer long overwater-capable mission profiles, with the AW189 typically in the roughly 450–500 nm class and carrying about 16–19 passengers, while the larger S‑92 is commonly used around 500+ nm with seating often around 19 passengers (depending on configuration and fuel/reserve rules). The Robinson R66 is a light, single‑engine helicopter primarily for private, training, and light utility missions. Its range is much shorter, typically around 300–350 nm, and capacity is six seats total (about five passengers plus a pilot). The Piper M600 SLS is not a helicopter but a single‑engine turboprop airplane in the personal/owner‑flown category. It generally offers a longer range than the R66 and is competitive with or exceeds many helicopter legs, typically around 1,200–1,500 nm, with seating for up to six occupants. Overall, the AW189 and S‑92 prioritize payload and mission capability, the R66 prioritizes simplicity and cost, and the M600 prioritizes speed and range with runway dependence.