Airbus Helicopters H160 vs Airbus Helicopters H175 vs Airbus Helicopters H225 vs Bell 525 Relentless

All four are twin‑engine civil helicopters, but they sit in different weight and mission classes. The Airbus H160 is a medium twin aimed at premium corporate, EMS, and light offshore work, offering the shortest overall range of the group and typically seating around 12 passengers in an airline‑style layout (or fewer in VIP fit), with two crew. The Airbus H175 is a super‑medium twin designed largely around offshore transport, generally carrying about 16 passengers, with meaningfully more range than the H160 and a step up in payload and cabin volume. The Airbus H225 is a heavy twin optimized for long‑range offshore, SAR, and utility roles, commonly configured for roughly 19 passengers (and higher-density seating possible), and it pairs large cabin capacity with strong range and lifting capability. The Bell 525 Relentless is a super‑medium twin positioned closest to the H175 in category, typically accommodating about 16 passengers, with competitive range in the super‑medium segment and modern avionics/fly‑by‑wire architecture aimed at offshore and corporate missions.