Airbus Helicopters H175 vs Bell 525 Relentless vs Leonardo Aw609 Tiltrotor vs Sikorsky S 76d vs Sikorsky S 92

The Airbus Helicopters H175 and Sikorsky S-76D sit in the “super‑medium” and “medium” twin‑engine helicopter categories respectively, typically used for offshore and corporate missions. The H175 generally offers longer legs and a larger cabin than the S-76D, with typical ranges in the mid‑300 to ~400+ nautical mile class and seating commonly around 12–16, while the S-76D more often falls in the ~350 nautical mile class with about 8–12 passengers depending on interior. Bell’s 525 Relentless is a modern super‑medium twin aimed at offshore and executive transport, broadly comparable to the H175 on category and capacity (often around 12–16), with range typically in the ~400 nautical mile neighborhood depending on configuration. The Sikorsky S-92 is a larger “heavy” twin, optimized for offshore and SAR, carrying more people (commonly 19 passengers in offshore layouts) and offering range commonly around ~500+ nautical miles. Leonardo’s AW609 is different: a civil tiltrotor, combining helicopter-like VTOL with airplane-like cruise, typically carrying around 6–9 passengers and targeting longer point-to-point range (often ~700+ nautical miles) at higher cruise speeds than the helicopters.