Bell 525 Relentless vs Gulfstream G700 vs Leonardo Aw189 vs Robinson R66

The Bell 525 Relentless and Leonardo AW189 are both medium/“super-medium” twin‑engine helicopters aimed at offshore, corporate, and utility missions. In category, the 525 is positioned at the higher end of the super‑medium class, while the AW189 is a widely used medium twin with strong offshore credentials. In range, both are typically suited to a few hundred nautical miles in practical passenger missions, with the 525 generally marketed with somewhat higher range/payload capability than many peers, depending on configuration. For passenger capacity, each can be configured around the mid‑teens, commonly up to roughly 16–19 seats in high‑density layouts, or fewer in VIP interiors. The Robinson R66 is a light single‑engine helicopter, substantially smaller and less capable in payload and IFR/offshore robustness. Its range is typically a few hundred nautical miles, and passenger capacity is usually about 4 passengers plus a pilot. The Gulfstream G700 is in a different category entirely: an ultra‑long‑range large‑cabin business jet. It offers intercontinental range (thousands of nautical miles) and typically carries 10–19 passengers in executive configurations, trading helicopter vertical access for far greater speed and range.