Beechcraft King Air 360 Er vs Bell 525 Relentless vs Piaggio Avanti Evo

The Beechcraft King Air 360ER and Piaggio Avanti EVO are both fixed‑wing turboprops, while the Bell 525 Relentless is a twin‑engine helicopter. On range, the King Air 360ER is generally the longest‑legged of the three, designed for extended missions of roughly 1,500 nautical miles depending on load and conditions. The Piaggio Avanti EVO typically offers a mid‑to‑long range in the neighborhood of about 1,000–1,400 nautical miles, also mission‑dependent, and is optimized for fast turboprop cruise efficiency. The Bell 525’s range is usually shorter than the long‑range fixed‑wing options, commonly around the 500–700 nautical mile class depending on reserves and payload, but it uniquely provides point‑to‑point vertical access without runways. For passenger capacity, the King Air 360ER commonly seats about 6–9 in executive layouts, the Avanti EVO is typically arranged for about 6–8 passengers, and the Bell 525 is often configured around 10–16 seats depending on mission and cabin setup.