Bell 525 Relentless vs Piaggio Avanti Evo vs Robinson R66

The Bell 525 Relentless and Robinson R66 are helicopters, while the Piaggio Avanti EVO is a twin‑engine turboprop airplane, so their mission profiles differ. The Bell 525 is a large, fly‑by‑wire super‑medium helicopter aimed at offshore, corporate, and utility work; it offers the longest typical range of the three (roughly around 500 nautical miles class, depending on configuration) and the highest passenger capacity, commonly up to about 16–20 seats in high‑density layouts. The Piaggio Avanti EVO is a fast pressurized business aircraft designed for point‑to‑point travel; it generally provides a longer range than the R66 and is often in the ~1,000+ nautical mile class, carrying about 7–9 passengers depending on interior. The Robinson R66 is a light single‑engine helicopter suited to short-range executive hops, training, and utility roles; it has the shortest range of the three (roughly ~300+ nautical miles class) and seats about 4 passengers plus a pilot (typically 5 total).