Airbus Helicopters H225 vs Bell 525 Relentless vs Piaggio Avanti Evo 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 roles. The H225 is typically used as a heavy helicopter with greater lift and cabin volume, supporting higher passenger counts in common configurations, while the Bell 525 is a modern “super‑medium” twin designed for fast cruise and long legs with a slightly smaller typical passenger load than the H225. The Piaggio Avanti EVO is not a helicopter but a pressurized twin‑turboprop fixed‑wing aircraft optimized for speed and efficiency on regional point‑to‑point trips. It generally offers the longest range and highest cruise speed of the four, with executive seating typically around six to seven passengers. The Robinson R66 is a light, single‑engine helicopter for private, training, and light utility missions. It has the shortest range and the smallest cabin, usually carrying a pilot plus four passengers, and is best suited to shorter trips and lower operating costs rather than heavy payloads or offshore missions.