Beechcraft King Air 360 Er vs Bell 525 Relentless vs Gulfstream G700 vs Robinson R66

The Beechcraft King Air 360ER is a twin‑turboprop business aircraft optimized for regional missions and short or unimproved runways, typically carrying about 6–9 passengers with a long-range profile around 2,000–2,500 nautical miles depending on payload and reserves. The Bell 525 Relentless is a large, fly‑by‑wire twin‑engine helicopter aimed at offshore and executive transport; it generally seats about 12–16 passengers in transport layouts, with typical range roughly in the 500–700 nautical mile class, varying strongly with configuration and fuel. The Gulfstream G700 is an ultra‑long‑range business jet for intercontinental travel, commonly configured for around 10–19 passengers and capable of approximately 7,000+ nautical miles, enabling nonstop city pairs across oceans. The Robinson R66 is a light single‑engine turbine helicopter focused on shorter hops and utility missions, usually carrying 4 passengers plus a pilot, with range commonly around 300–350 nautical miles. Overall, the G700 leads in range and cabin volume, the King Air 360ER balances range with runway flexibility, and the helicopters trade speed and range for vertical access and point‑to‑point convenience.