Airbus Helicopters H225 vs Bell 525 Relentless vs Cessna 208b Grand Caravan Ex vs Robinson R66

The Airbus H225 and Bell 525 Relentless are large, long‑range twin‑engine helicopters aimed at offshore transport, SAR, and high‑end utility missions. The H225 is typically configured for roughly 19 passengers and offers on the order of 450–500+ nautical miles of range depending on fuel and payload. The Bell 525 is in a similar heavy class, generally seating about 16–20 passengers with a broadly comparable range in the mid‑400 nautical mile bracket, also varying by configuration. The Cessna 208B Grand Caravan EX is a single‑engine turboprop airplane rather than a helicopter, optimized for rugged regional transport and short/remote strips. It commonly carries 9–14 passengers and typically achieves roughly 900–1,000+ nautical miles of range, giving it a major range advantage over the rotorcraft but without vertical‑lift capability. The Robinson R66 is a light single‑engine helicopter for shorter missions and lower operating cost. It usually carries 4–5 people including the pilot and has a typical range around 300–350 nautical miles, well below the larger twins and generally below the Caravan.