Bell 525 Relentless vs Boeing Bbj Max 9 vs Daher Tbm 960 vs Piaggio Avanti Evo
The Bell 525 Relentless is a fly-by-wire, long-range helicopter aimed at offshore and VIP missions. It typically carries around 16–19 passengers depending on configuration and offers roughly 500–600 nautical miles of range, trading speed and altitude for vertical access and point-to-point flexibility. The Boeing BBJ MAX 9 is an ultra-long-range, large-cabin business airliner derivative. In business-jet interiors it generally carries a few dozen passengers comfortably (often about 25–50, with much higher possible in airline layout) and delivers intercontinental range on the order of about 6,000+ nautical miles, optimized for high-speed, high-altitude global travel. The Daher TBM 960 is a single-engine turboprop personal/business aircraft for fast, efficient regional missions. It seats up to about 6 passengers (plus a pilot) and has roughly 1,500–1,700 nautical miles of range, prioritizing operating cost and access to shorter runways. The Piaggio Avanti EVO is a twin-turboprop with a standout cabin for its class and high cruise speed. It typically seats about 7–9 and offers around 1,400–1,700 nautical miles of range, positioned between the TBM’s simplicity and larger jet-like comfort.
| Spec | Bell 525 Relentless | Boeing BBJ MAX 9 | Daher TBM 960 | Piaggio Avanti EVO |
|---|---|---|---|---|
| Summary | ||||
| Cockpit | 2 | 2 | 2 | 2 |
| Min Crew | 2 | 4 | 1 | 1 |
| Total Seats | 18 | 12 | 6 | 8 |
| Flight Rules | IFR | — | IFR | IFR |
| Manufacturer | Bell | Boeing | Daher TBM | Piaggio |
| Aircraft Name | 525 Relentless | BBJ MAX 9 | TBM 960 | Avanti EVO |
| Certification | FAA / EASA | FAA / EASA | FAA / EASA | FAA / EASA |
| Max Range (nm) | 580 | 6376 | 1730 | 1530 |
| Max Cabin Seats | 16 | 35 | — | 7 |
| OEM Verification | VERIFIED | VERIFIED | Un-Verified | Un-Verified |
| Useful Load (lbs) | 6675 | 77120 | 2908 | 3775 |
| Standard Cabin Seats | 16 | 8 | 4 | 6 |
| Flight Deck (Base Spec) | Garmin G5000H | Honeywell | Garmin G3000 | Rockwell Collins Pro Line 21 |
| Max Cruise Speed (ktas) | 160 | 470 | 330 | 400 |
| Base Aircraft Price (USD) | $15,000,000 | $107,700,000 | $4,450,000 | $ 7,695,000 |
| DOC / nm | — | $ 15.74 | $ 2.25 | — |
| DOC / nm / Seat | — | $ 1.97 | $ 0.56 | — |
| Direct Operating Cost | — | $ 7,396 | $ 744 | — |
| Aircraft Type | — | — | Turbo Prop | — |
| Cabin | ||||
| Cockpit | 2 | 2 | 2 | 2 |
| Min Crew | 2 | 4 | 1 | 1 |
| Total Seats | 18 | 10 | 6 | 8 |
| Max Cabin Seats | 16 | 35 | — | 7 |
| Standard Cabin Seats | 16 | 8 | 4 | 6 |
| Configuration | — | Green Interior | — | — |
| Cabin Pressure (psi) | — | 9 | 6.2 | 9 |
| SL Cabin Altitude (ft) | — | 24000 | 14390 | 24000 |
| Lavatory | — | — | No | No |
| Galley Location | — | — | MID | — |
| Galley / Refreshment | — | — | — | No |
| Max Cabin Altitude (ft) | — | — | — | 6600 |
| Engine | ||||
| FADEC | Dual-Channel | Yes | Yes | Yes |
| Model | CT7-2F1 | LEAP-1B | TBM 960 | PT6A–66B |
| Fuel Type | JetFuel | — | — | — |
| TBO (hrs) | 4000 | On-Condition | 3500 | 3600 |
| Horsepower | 1800 | — | 850 | 850 |
| No. of Engines | 2 | 2 | — | 2 |
| Fuel Capacity (gal) | 641 | — | — | — |
| Flat Rating | — | ISA + 15 | ISA + 49 | ISA + 28 |
| Thrust (lbs) | — | 28000 | — | — |
| Fuel Burn (gph) | — | — | — | 100 |
| Dimensions | ||||
| Width (ft) | 25.77 | — | — | — |
| Length (ft) | 61.58 | 138.4 | 35.3 | 47.3 |
| Cabin Width (ft) | 7.58 | 11.6 | 4 | 6.1 |
| Cabin Height (ft) | 4.5 | 7.1 | 4.1 | 5.8 |
| Cabin Length (ft) | 15.5 | 107.2 | 13.4 | 14.9 |
| Overall Height (ft) | 18.18 | 40.3 | — | 13.1 |
| Rotor Diameter (ft) | 54.5 | — | — | — |
| Baggage Volume Ext. (cu. ft) | 128 | 1485 | — | — |
| Wingspan (ft) | — | 117.9 | 42.1 | 47.1 |
| Aisle Step (ft) | — | Flat Floor | — | — |
| Cabin Width - Floor (ft) | — | 10.7 | — | 3.5 |
| Cabin Length - Seating (ft) | — | 100.6 | — | — |
| Cabin Volume (cu. ft) | — | — | 123 | — |
| Baggage Volume Int. (cu. ft) | — | — | — | 35.2 |