Bell 525 Relentless vs Daher Tbm 960 vs Dassault Falcon 8x vs Robinson R66

The Bell 525 Relentless and Robinson R66 are helicopters, while the Daher TBM 960 and Dassault Falcon 8X are fixed‑wing airplanes. In category and mission, the Bell 525 is a large, twin‑engine corporate/offshore helicopter designed for higher speed, IFR capability, and longer legs than light helicopters; the R66 is a light, single‑engine turbine helicopter aimed at simpler utility and short‑range personal or training missions. For range, the Falcon 8X is the clear long‑haul leader as an ultra‑long‑range business jet capable of intercontinental trips, while the TBM 960 is a high‑performance single‑engine turboprop optimized for efficient regional and some transcontinental flying. The Bell 525 typically sits below the TBM and far below the Falcon in range but exceeds the R66, which is generally the shortest‑range aircraft of the group. For passenger capacity, the Falcon 8X typically carries the most in comfort (often around 12–16 in executive layouts), the TBM 960 usually seats about 4–6 passengers plus pilot, the Bell 525 commonly supports executive seating in the mid‑single digits up to around a dozen depending on configuration, and the R66 generally carries up to five including the pilot.