Bell 525 Relentless vs Boeing Bbj Max 9 vs Piaggio Avanti Evo
The Bell 525 Relentless is a fly-by-wire super‑medium helicopter best suited to point-to-point access where runways aren’t available, such as offshore platforms or city-adjacent landing sites. Its range is roughly in the 500–600 nautical mile class (mission dependent), and it typically carries about 16 passengers in an executive or high-density layout, trading long-haul efficiency for vertical-lift flexibility. The Boeing BBJ MAX 9 is a large, long-range VIP airliner in the business jet category, designed for intercontinental travel between major airports. Depending on configuration and reserves, it offers roughly 3,200–3,600 nautical miles of range and can be outfitted for a small VIP group (often a few dozen) or a much higher-capacity seating plan, with maximum layouts approaching airline-style counts. The Piaggio Avanti EVO is a fast, efficient twin‑turboprop business aircraft optimized for regional missions from conventional runways, including many shorter fields. It typically offers about 1,400–1,800 nautical miles of range and usually seats 6–9 passengers in executive comfort.
| Spec | Bell 525 Relentless | Boeing BBJ MAX 9 | Piaggio Avanti EVO |
|---|---|---|---|
| Summary | |||
| Cockpit | 2 | 2 | 2 |
| Min Crew | 2 | 4 | 1 |
| Total Seats | 18 | 12 | 8 |
| Flight Rules | IFR | — | IFR |
| Manufacturer | Bell | Boeing | Piaggio |
| Aircraft Name | 525 Relentless | BBJ MAX 9 | Avanti EVO |
| Certification | FAA / EASA | FAA / EASA | FAA / EASA |
| Max Range (nm) | 580 | 6376 | 1530 |
| Max Cabin Seats | 16 | 35 | 7 |
| OEM Verification | VERIFIED | VERIFIED | Un-Verified |
| Useful Load (lbs) | 6675 | 77120 | 3775 |
| Standard Cabin Seats | 16 | 8 | 6 |
| Flight Deck (Base Spec) | Garmin G5000H | Honeywell | Rockwell Collins Pro Line 21 |
| Max Cruise Speed (ktas) | 160 | 470 | 400 |
| Base Aircraft Price (USD) | $15,000,000 | $107,700,000 | $ 7,695,000 |
| DOC / nm | — | $ 15.74 | — |
| DOC / nm / Seat | — | $ 1.97 | — |
| Direct Operating Cost | — | $ 7,396 | — |
| Cabin | |||
| Cockpit | 2 | 2 | 2 |
| Min Crew | 2 | 4 | 1 |
| Total Seats | 18 | 10 | 8 |
| Max Cabin Seats | 16 | 35 | 7 |
| Standard Cabin Seats | 16 | 8 | 6 |
| Configuration | — | Green Interior | — |
| Cabin Pressure (psi) | — | 9 | 9 |
| SL Cabin Altitude (ft) | — | 24000 | 24000 |
| Lavatory | — | — | No |
| Galley / Refreshment | — | — | No |
| Max Cabin Altitude (ft) | — | — | 6600 |
| Engine | |||
| FADEC | Dual-Channel | Yes | Yes |
| Model | CT7-2F1 | LEAP-1B | PT6A–66B |
| Fuel Type | JetFuel | — | — |
| TBO (hrs) | 4000 | On-Condition | 3600 |
| Horsepower | 1800 | — | 850 |
| No. of Engines | 2 | 2 | 2 |
| Fuel Capacity (gal) | 641 | — | — |
| Flat Rating | — | ISA + 15 | ISA + 28 |
| Thrust (lbs) | — | 28000 | — |
| Fuel Burn (gph) | — | — | 100 |
| Dimensions | |||
| Width (ft) | 25.77 | — | — |
| Length (ft) | 61.58 | 138.4 | 47.3 |
| Cabin Width (ft) | 7.58 | 11.6 | 6.1 |
| Cabin Height (ft) | 4.5 | 7.1 | 5.8 |
| Cabin Length (ft) | 15.5 | 107.2 | 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 | 47.1 |
| Aisle Step (ft) | — | Flat Floor | — |
| Cabin Width - Floor (ft) | — | 10.7 | 3.5 |
| Cabin Length - Seating (ft) | — | 100.6 | — |
| Baggage Volume Int. (cu. ft) | — | — | 35.2 |