Bell 525 Relentless vs Daher Tbm 960 vs Robinson R66 vs Sikorsky S 92

The Bell 525 Relentless is a modern super‑medium twin‑engine helicopter aimed at offshore and corporate missions, offering long helicopter-class range (roughly in the 500–600+ nautical mile class, mission dependent) and typically carrying about 12–16 passengers in high-density layouts. The Sikorsky S‑92 is a larger heavy twin helicopter optimized for offshore transport and SAR, generally carrying around 19 passengers in typical oil-and-gas seating and providing comparable or somewhat greater mission range than many super‑mediums (often around the 500–600+ nautical mile class, depending on tanks and payload). The Robinson R66 is a light single‑engine helicopter intended for utility and personal/short‑haul work; it seats up to 5 including the pilot and has a much shorter practical range than the 525 or S‑92 (commonly a few hundred nautical miles). The Daher TBM 960 is not a helicopter but a single‑engine turboprop airplane; it trades vertical lift for speed and efficiency, typically carrying 4–6 passengers (up to 6 plus pilot) and delivering much longer range than the helicopters here, commonly around 1,000+ nautical miles with reserves depending on profile.