Bell 525 Relentless vs Bombardier Global 7500 vs Piaggio Avanti Evo vs Piper M600 Sls
The Bell 525 Relentless is a twin‑engine helicopter aimed at offshore, corporate shuttle, and parapublic missions, trading speed and altitude for vertical takeoff flexibility. Its range is roughly in the 500–600 nautical mile class, and typical passenger capacity is about 16–19 depending on cabin configuration. The Bombardier Global 7500 is an ultra‑long‑range business jet designed for intercontinental city pairs. It offers about 7,700 nautical miles of range and typically carries 14–19 passengers in executive layouts (with higher maximums possible depending on certification and seating). The Piaggio Avanti EVO is a twin‑turboprop business aircraft positioned between light jets and larger turboprops for speed and efficiency. Its range is roughly 1,700–1,900 nautical miles, and it generally seats about 6–9 passengers. The Piper M600 SLS is a single‑engine turboprop optimized for owner‑operators and shorter business trips. Its range is about 1,400–1,500 nautical miles with reserves, and it typically carries 1–5 passengers plus the pilot (up to six seats total).
| Spec | Bell 525 Relentless | Bombardier Global 7500 | Piaggio Avanti EVO | Piper M600 SLS |
|---|---|---|---|---|
| Summary | ||||
| Cockpit | 2 | 2 | 2 | 2 |
| Min Crew | 2 | 2 | 1 | 1 |
| Total Seats | 18 | 14 | 8 | 6 |
| Flight Rules | IFR | — | IFR | IFR |
| Manufacturer | Bell | Bombardier | Piaggio | Piper |
| Aircraft Name | 525 Relentless | Global 7500 | Avanti EVO | M600 |
| Certification | FAA / EASA | FAA / EASA | FAA / EASA | FAA / EASA |
| Max Range (nm) | 580 | 7700 | 1530 | 1406 |
| Max Cabin Seats | 16 | 19 | 7 | — |
| OEM Verification | VERIFIED | VERIFIED | Un-Verified | VERIFIED |
| Useful Load (lbs) | 6675 | — | 3775 | 2200 |
| Standard Cabin Seats | 16 | 12 | 6 | 4 |
| Flight Deck (Base Spec) | Garmin G5000H | Bombardier Vision (Pro Line Fusion) | Rockwell Collins Pro Line 21 | Garmin G3000 |
| Max Cruise Speed (ktas) | 160 | 516 | 400 | 274 |
| Base Aircraft Price (USD) | $15,000,000 | $75,000,000 | $ 7,695,000 | $3,081,400 |
| DOC / nm | — | $ 9.50 | — | $ 2.19 |
| Aircraft Type | — | Business Jet | — | — |
| DOC / nm / Seat | — | $ 0.79 | — | $ 0.55 |
| Direct Operating Cost | — | $ 4,900 | — | $ 603 |
| Cabin | ||||
| Cockpit | 2 | 2 | 2 | 2 |
| Min Crew | 2 | 2 | 1 | 1 |
| Total Seats | 18 | 14 | 8 | 5 |
| Max Cabin Seats | 16 | 19 | 7 | — |
| Standard Cabin Seats | 16 | 12 | 6 | 4 |
| Lavatory | — | 2 Enclosed Flushing | No | No |
| Crew Rest | — | Yes | — | — |
| Jump Seat | — | Yes | — | — |
| Galley Location | — | FWD | — | MID |
| Lavatory Location | — | FWD / AFT | — | — |
| Galley / Refreshment | — | Galley | No | Refreshment Centre |
| Max Cabin Altitude (ft) | — | 4500 | 6600 | 8644 |
| Cabin Pressure (psi) | — | — | 9 | 5.6 |
| SL Cabin Altitude (ft) | — | — | 24000 | 12600 |
| Engine | ||||
| FADEC | Dual-Channel | Yes | Yes | No |
| Model | CT7-2F1 | Passport | PT6A–66B | PT6A-42A |
| Fuel Type | JetFuel | — | — | — |
| TBO (hrs) | 4000 | On-Condition | 3600 | 3600 |
| Horsepower | 1800 | — | 850 | 600 |
| No. of Engines | 2 | 2 | 2 | 1 |
| Fuel Capacity (gal) | 641 | — | — | 260 |
| Flat Rating | — | ISA + 15 | ISA + 28 | ISA + 55 |
| Thrust (lbs) | — | 18920 | — | — |
| Fuel Burn (gph) | — | — | 100 | — |
| Dimensions | ||||
| Width (ft) | 25.77 | — | — | — |
| Length (ft) | 61.58 | 111 | 47.3 | 29.7 |
| Cabin Width (ft) | 7.58 | 8 | 6.1 | 4.1 |
| Cabin Height (ft) | 4.5 | 6.2 | 5.8 | 4 |
| Cabin Length (ft) | 15.5 | 54.5 | 14.9 | 12.3 |
| Overall Height (ft) | 18.18 | 27 | 13.1 | 11.3 |
| Rotor Diameter (ft) | 54.5 | — | — | — |
| Baggage Volume Ext. (cu. ft) | 128 | — | — | — |
| Wingspan (ft) | — | 104 | 47.1 | 43.2 |
| Cabin Width - Floor (ft) | — | — | 3.5 | — |
| Baggage Volume Int. (cu. ft) | — | — | 35.2 | 20 |
| Cabin Volume (cu. ft) | — | — | — | 165 |