Bell 525 Relentless vs Cessna 208b Grand Caravan Ex vs Robinson R66 vs Sikorsky S 92

The Bell 525 Relentless and Sikorsky S‑92 are medium, twin‑engine helicopters aimed at offshore, corporate, and SAR-style missions, while the Robinson R66 is a light, single‑engine helicopter oriented to utility and short-haul passenger work. The Cessna 208B Grand Caravan EX is a single‑engine turboprop fixed‑wing aircraft focused on rugged regional transport rather than vertical-lift operations. On range, the Grand Caravan EX typically offers the longest practical legs among these choices, commonly around 900–1,200 nautical miles depending on payload and reserves. The S‑92 and Bell 525 generally sit in the middle, with typical mission ranges roughly in the 450–600+ nautical mile class, again varying with fuel, cabin fit, and reserves. The R66 is the shortest-range option, commonly around 300–350 nautical miles. For passenger capacity, the S‑92 is the largest, typically configured around 19 passengers (plus crew) in offshore layouts. The Bell 525 is slightly smaller, commonly around 16–18 passengers in typical configurations. The Grand Caravan EX usually seats about 9–14 depending on interior and regulations, while the R66 generally carries up to 4 passengers plus the pilot.