Bell 525 Relentless vs Daher Tbm 960 vs Robinson R66
The Bell 525 Relentless is a twin‑engine, fly‑by‑wire helicopter aimed at corporate and offshore missions. It sits in a much higher category than the other two, carrying a larger cabin load and typically seating about 16 passengers (with configurations varying by operator). Its range is roughly in the 500–600 nautical mile class depending on payload and reserves, optimized for lifting capability and flexibility rather than pure point‑to‑point speed. The Daher TBM 960 is a high‑performance single‑engine turboprop airplane designed for fast, efficient cross‑country travel. It generally seats 4 to 6 occupants and delivers the longest range of the three, commonly around 1,400–1,700 nautical miles depending on power settings, payload, and IFR reserves, making it the best fit for long nonstop trips between runways. The Robinson R66 is a light single‑engine helicopter for private, utility, and training use. It typically carries about 4 passengers plus a pilot (around 5 total) and has a shorter range than the TBM and typically less than the Bell 525, commonly around 300–350 nautical miles depending on conditions and configuration.
| Spec | Bell 525 Relentless | Daher TBM 960 |
|---|---|---|
| Summary | ||
| Cockpit | 2 | 2 |
| Min Crew | 2 | 1 |
| Total Seats | 18 | 6 |
| Flight Rules | IFR | IFR |
| Manufacturer | Bell | Daher TBM |
| Aircraft Name | 525 Relentless | TBM 960 |
| Certification | FAA / EASA | FAA / EASA |
| Max Range (nm) | 580 | 1730 |
| Max Cabin Seats | 16 | — |
| OEM Verification | VERIFIED | Un-Verified |
| Useful Load (lbs) | 6675 | 2908 |
| Standard Cabin Seats | 16 | 4 |
| Flight Deck (Base Spec) | Garmin G5000H | Garmin G3000 |
| Max Cruise Speed (ktas) | 160 | 330 |
| Base Aircraft Price (USD) | $15,000,000 | $4,450,000 |
| DOC / nm | — | $ 2.25 |
| Aircraft Type | — | Turbo Prop |
| DOC / nm / Seat | — | $ 0.56 |
| Direct Operating Cost | — | $ 744 |
| Cabin | ||
| Cockpit | 2 | 2 |
| Min Crew | 2 | 1 |
| Total Seats | 18 | 6 |
| Max Cabin Seats | 16 | — |
| Standard Cabin Seats | 16 | 4 |
| Lavatory | — | No |
| Galley Location | — | MID |
| Cabin Pressure (psi) | — | 6.2 |
| SL Cabin Altitude (ft) | — | 14390 |
| Engine | ||
| FADEC | Dual-Channel | Yes |
| Model | CT7-2F1 | TBM 960 |
| Fuel Type | JetFuel | — |
| TBO (hrs) | 4000 | 3500 |
| Horsepower | 1800 | 850 |
| No. of Engines | 2 | — |
| Fuel Capacity (gal) | 641 | — |
| Flat Rating | — | ISA + 49 |
| Dimensions | ||
| Width (ft) | 25.77 | — |
| Length (ft) | 61.58 | 35.3 |
| Cabin Width (ft) | 7.58 | 4 |
| Cabin Height (ft) | 4.5 | 4.1 |
| Cabin Length (ft) | 15.5 | 13.4 |
| Overall Height (ft) | 18.18 | — |
| Rotor Diameter (ft) | 54.5 | — |
| Baggage Volume Ext. (cu. ft) | 128 | — |
| Wingspan (ft) | — | 42.1 |
| Cabin Volume (cu. ft) | — | 123 |