Bell 525 Relentless vs Sikorsky S 92 vs Sikorsky S 76d

The Bell 525 Relentless and Sikorsky S-92 sit in the heavy, long‑range, twin‑engine helicopter class commonly used for offshore energy, SAR, and high‑capacity executive transport, while the Sikorsky S-76D is a smaller, medium twin optimized for shorter missions and lower operating footprint. In typical configurations, the S-92 generally carries the most passengers, commonly around 19, reflecting its larger cabin and offshore transport heritage. The Bell 525 is usually configured in the mid‑to‑high teens (often about 16–18) depending on interior and mission equipment, positioning it slightly below the S-92 for maximum headcount but still in the same offshore-capable category. The S-76D is usually set up for fewer passengers, often about 8–12, prioritizing speed, comfort, and efficiency for corporate and regional shuttle roles. For range, the 525 and S-92 are broadly comparable long‑range platforms, typically around the 500–600 nautical mile class depending on fuel, payload, and reserves, whereas the S-76D is generally shorter‑legged, commonly in the roughly 400–450 nautical mile class.