Bell 525 Relentless vs Gulfstream G700 vs Piaggio Avanti Evo
The Bell 525 Relentless is a fly-by-wire, twin‑engine helicopter aimed at high-speed offshore, corporate shuttle, and utility missions. Its practical range is generally in the several-hundred–nautical-mile class (often around 500–600 nm depending on payload and reserves), and it typically carries one or two pilots plus up to about 16 passengers in a high-density layout, with fewer for VIP comfort. The Gulfstream G700 is an ultra-long-range business jet built for intercontinental travel. It offers roughly 7,500 nm of range and is optimized for high-speed, high-altitude cruise with a large-cabin luxury interior. Passenger capacity varies by configuration, but it commonly seats around 12–19, with maximum layouts higher. The Piaggio Avanti EVO is a pressurized twin‑turboprop business aircraft positioned between light and midsize business jets for regional to transcontinental trips. Its range is typically around 1,400–1,800 nm, and it usually carries about 6–9 passengers in executive seating (with higher maximum occupancy possible depending on certification and layout).
| Spec | Bell 525 Relentless | Gulfstream G700 | Piaggio Avanti EVO |
|---|---|---|---|
| Summary | |||
| Cockpit | 2 | 3 | 2 |
| Min Crew | 2 | 4 | 1 |
| Total Seats | 18 | 16 | 8 |
| Flight Rules | IFR | — | IFR |
| Manufacturer | Bell | Gulfstream | Piaggio |
| Aircraft Name | 525 Relentless | G700 | Avanti EVO |
| Certification | FAA / EASA | In Development | FAA / EASA |
| Max Range (nm) | 580 | 7500 | 1530 |
| Max Cabin Seats | 16 | 19 | 7 |
| OEM Verification | VERIFIED | Un-Verified | Un-Verified |
| Useful Load (lbs) | 6675 | — | 3775 |
| Standard Cabin Seats | 16 | 12 | 6 |
| Flight Deck (Base Spec) | Garmin G5000H | Gulfstream Symmetry Flight Deck | Rockwell Collins Pro Line 21 |
| Max Cruise Speed (ktas) | 160 | 516 | 400 |
| Base Aircraft Price (USD) | $15,000,000 | $78,000,000 | $ 7,695,000 |
| Cabin | |||
| Cockpit | 2 | 2 | 2 |
| Min Crew | 2 | 4 | 1 |
| Total Seats | 18 | 16 | 8 |
| Max Cabin Seats | 16 | 19 | 7 |
| Standard Cabin Seats | 16 | 12 | 6 |
| Crew Rest | — | Optional | — |
| Jump Seat | — | Yes | — |
| Galley Location | — | FWD | — |
| Lavatory Location | — | FWD / AFT | — |
| Lavatory | — | — | No |
| Cabin Pressure (psi) | — | — | 9 |
| Galley / Refreshment | — | — | No |
| SL Cabin Altitude (ft) | — | — | 24000 |
| Max Cabin Altitude (ft) | — | — | 6600 |
| Engine | |||
| FADEC | Dual-Channel | — | Yes |
| Model | CT7-2F1 | Pearl 700 | PT6A–66B |
| Fuel Type | JetFuel | — | — |
| TBO (hrs) | 4000 | On Condition | 3600 |
| Horsepower | 1800 | — | 850 |
| No. of Engines | 2 | 2 | 2 |
| Fuel Capacity (gal) | 641 | — | — |
| Thrust (lbs) | — | 18250 | — |
| Flat Rating | — | — | ISA + 28 |
| Fuel Burn (gph) | — | — | 100 |
| Dimensions | |||
| Width (ft) | 25.77 | — | — |
| Length (ft) | 61.58 | 109.9 | 47.3 |
| Cabin Width (ft) | 7.58 | 8.2 | 6.1 |
| Cabin Height (ft) | 4.5 | 6.25 | 5.8 |
| Cabin Length (ft) | 15.5 | 56.9 | 14.9 |
| Overall Height (ft) | 18.18 | 25.4 | 13.1 |
| Rotor Diameter (ft) | 54.5 | — | — |
| Baggage Volume Ext. (cu. ft) | 128 | — | — |
| Wingspan (ft) | — | 103 | 47.1 |
| Aisle Step (ft) | — | Flat Floor | — |
| Baggage Volume Int. (cu. ft) | — | 195 | 35.2 |
| Cabin Width - Floor (ft) | — | — | 3.5 |