Airbus Helicopters H155 vs Bell 412epi vs Sikorsky S 76d

All three are twin‑engine helicopters, but they sit in different market niches. The Airbus Helicopters H155 is typically positioned as a medium twin for corporate and offshore support, offering a generally long operating reach for its class and a spacious cabin that commonly accommodates around a dozen passengers in high‑density seating or fewer in VIP layouts. The Bell 412EPi is a medium‑lift utility twin derived from the 412 line, often favored for public service, utility, and offshore roles; it usually trades some cruise efficiency for robust lifting and mission flexibility, with typical passenger seating also in the low‑to‑mid teens depending on configuration. The Sikorsky S‑76D is a lighter, fast executive/offshore twin, generally optimized for speed and refined passenger transport; it commonly carries about 8–12 passengers depending on layout, with a range that is competitive but often optimized around typical offshore legs rather than maximum endurance. In short, H155 emphasizes cabin volume and range balance, 412EPi emphasizes utility and lift, and S‑76D emphasizes speed and executive/offshore transport.