Bell 525 Relentless vs Enstrom 480b vs Robinson R66

The Bell 525 Relentless is a super‑medium, twin‑engine helicopter aimed at offshore, corporate, and utility missions. It offers the greatest range of the three (roughly in the 500–600+ nautical mile class, depending on configuration) and the highest passenger capacity, typically arranged for around 16–20 occupants in many mission interiors, making it suitable for longer overwater legs and higher payload operations. The Enstrom 480B is a light, single‑engine turbine helicopter positioned for training, patrol, and general utility work. Its range is mid‑pack (commonly around the 250–350 nautical mile class), and it generally seats up to five people including the pilot, emphasizing simplicity and operating economy over maximum speed or cabin volume. The Robinson R66 is also a light, single‑engine turbine helicopter, widely used for private, charter, and light utility roles. Its typical range is similar to, or slightly better than, the 480B in many configurations (often around the 300–350 nautical mile class), with seating for up to five including the pilot, but with a broader market focus on low operating costs and straightforward ownership.