Bell 525 Relentless vs Daher Tbm 960 vs Piaggio Avanti Evo vs Robinson R66

The Bell 525 Relentless is a twin‑engine helicopter aimed at offshore, corporate, and utility missions. It offers moderate range for a rotorcraft (roughly in the 500–600 nautical mile class, mission dependent) and typically carries about 12–16 passengers depending on cabin fit and fuel. The Robinson R66 is a much smaller single‑engine helicopter suited to personal, training, and light commercial use, with shorter range (around the 300+ nautical mile class) and seating for 4–5 including the pilot. The Daher TBM 960 is a high‑performance single‑engine turboprop airplane optimized for fast owner‑flown or corporate point‑to‑point travel. It generally provides longer range than the helicopters (around the 1,000+ nautical mile class) and carries 4–6 passengers in a pressurized cabin. The Piaggio Avanti EVO is a twin‑turboprop airplane positioned as a faster, longer‑leg executive aircraft than the TBM in many profiles, with range typically around the 1,000+ nautical mile class and seating commonly 6–9, combining a spacious cabin with higher cruise speed.