Airbus Helicopters H225 vs Bell 525 Relentless vs Robinson R66 vs Sikorsky S 92

The Airbus H225 and Sikorsky S‑92 sit in the heavy, twin‑engine offshore/utility category, built to move larger groups and payloads with strong all‑weather capability. Both typically carry around 19 passengers in high‑density configurations (often fewer for offshore seating), and they offer long, offshore‑oriented ranges that are broadly comparable, generally in the 450–550 nautical mile class depending on fit and reserves. The Bell 525 Relentless is a modern “super‑medium” twin designed to bridge the gap between medium twins and heavy types. It usually seats fewer than the H225/S‑92 (commonly up to about 16–20 depending on layout) but emphasizes speed and efficient long-range missions; its advertised range can reach roughly 560 nautical miles, again configuration-dependent. The Robinson R66 is a light, single‑engine helicopter intended for cost‑effective utility and personal/short‑haul roles. It carries about 4 passengers (plus pilot) and has a much shorter range, roughly around 300–350 nautical miles, making it unsuitable for the same offshore passenger transport missions as the larger twins.