Bell 525 Relentless vs Gulfstream G700 vs Piper M600 Sls vs Robinson R66

The Bell 525 Relentless and Robinson R66 are helicopters, while the Gulfstream G700 and Piper M600 SLS are fixed‑wing airplanes, so their capabilities differ sharply. The Gulfstream G700 is a large, ultra‑long‑range business jet designed for intercontinental travel, offering the longest range of the group (roughly 7,000+ nautical miles depending on configuration) and the highest typical passenger capacity, often arranged for about a dozen or more in a spacious cabin. The Piper M600 SLS is a single‑engine turboprop aimed at owner‑pilots; it has medium range (around 1,000–1,500 nautical miles) and typically carries up to six occupants. The Bell 525 is a long‑range, fly‑by‑wire super‑medium helicopter suited to offshore and corporate missions; it generally carries around 10–16 passengers with range on the order of a few hundred nautical miles (commonly ~500+ depending on payload and reserves). The Robinson R66 is a light turbine helicopter for shorter regional hops, typically seating five (including the pilot) with range in the few‑hundred‑nautical‑mile class.