Bell 525 Relentless vs Gulfstream G700 vs Leonardo Aw189 vs Piper M600 Sls
The Bell 525 Relentless and Leonardo AW189 are modern twin‑engine helicopters aimed at offshore, utility, and VIP missions. Both typically carry around 16–19 passengers depending on seating and interior fit, with real‑world mission ranges generally in the few‑hundred‑nautical‑mile class and extended range possible with auxiliary fuel; the AW189 is widely proven in service, while the 525 targets similar roles with fly‑by‑wire ambitions and comparable cabin capacity. The Gulfstream G700 is a long‑range large‑cabin business jet in a different category entirely, optimized for intercontinental travel. It carries a typical executive load roughly in the low‑ to mid‑teens (often configured for about 13–19), but with vastly greater range—about 7,500 nautical miles class—enabling nonstop transoceanic missions at high speed and altitude. The Piper M600 SLS is a single‑engine turboprop personal/business aircraft. It seats up to about six, with range roughly around 1,400–1,500 nautical miles, sitting between the helicopters and the G700 in range but well below the G700 in speed, cabin volume, and passenger capacity.
| Spec | Bell 525 Relentless | Gulfstream G700 | AGUSTA / LEONARDO AW189 | Piper M600 SLS |
|---|---|---|---|---|
| Summary | ||||
| Cockpit | 2 | 3 | 2 | 2 |
| Min Crew | 2 | 4 | 1 | 1 |
| Total Seats | 18 | 16 | 21 | 6 |
| Flight Rules | IFR | — | IFR | IFR |
| Manufacturer | Bell | Gulfstream | Leonardo | Piper |
| Aircraft Name | 525 Relentless | G700 | AW189 | M600 |
| Certification | FAA / EASA | In Development | FAA / EASA | FAA / EASA |
| Max Range (nm) | 580 | 7500 | 651 | 1406 |
| Max Cabin Seats | 16 | 19 | 19 | — |
| OEM Verification | VERIFIED | Un-Verified | Un-Verified | VERIFIED |
| Useful Load (lbs) | 6675 | — | — | 2200 |
| Standard Cabin Seats | 16 | 12 | 19 | 4 |
| Flight Deck (Base Spec) | Garmin G5000H | Gulfstream Symmetry Flight Deck | EFIS | Garmin G3000 |
| Max Cruise Speed (ktas) | 160 | 516 | 155 | 274 |
| Base Aircraft Price (USD) | $15,000,000 | $78,000,000 | $2,413,000 | $3,081,400 |
| DOC / nm | — | — | $ 15.57 | $ 2.19 |
| DOC / nm / Seat | — | — | $ 0.74 | $ 0.55 |
| Direct Operating Cost | — | — | $ 2,413 | $ 603 |
| Cabin | ||||
| Cockpit | 2 | 2 | 2 | 2 |
| Min Crew | 2 | 4 | 1 | 1 |
| Total Seats | 18 | 16 | 21 | 5 |
| Max Cabin Seats | 16 | 19 | 19 | — |
| Standard Cabin Seats | 16 | 12 | 19 | 4 |
| Crew Rest | — | Optional | — | — |
| Jump Seat | — | Yes | — | — |
| Galley Location | — | FWD | — | MID |
| Lavatory Location | — | FWD / AFT | — | — |
| Lavatory | — | — | — | No |
| Cabin Pressure (psi) | — | — | — | 5.6 |
| Galley / Refreshment | — | — | — | Refreshment Centre |
| SL Cabin Altitude (ft) | — | — | — | 12600 |
| Max Cabin Altitude (ft) | — | — | — | 8644 |
| Engine | ||||
| FADEC | Dual-Channel | — | Yes | No |
| Model | CT7-2F1 | Pearl 700 | CT7-2E1 | PT6A-42A |
| Fuel Type | JetFuel | — | JetFuel | — |
| TBO (hrs) | 4000 | On Condition | 4000 | 3600 |
| Horsepower | 1800 | — | 1983 | 600 |
| No. of Engines | 2 | 2 | 2 | 1 |
| Fuel Capacity (gal) | 641 | — | — | 260 |
| Thrust (lbs) | — | 18250 | — | — |
| Flat Rating | — | — | — | ISA + 55 |
| Dimensions | ||||
| Width (ft) | 25.77 | — | — | — |
| Length (ft) | 61.58 | 109.9 | 57.8 | 29.7 |
| Cabin Width (ft) | 7.58 | 8.2 | — | 4.1 |
| Cabin Height (ft) | 4.5 | 6.25 | — | 4 |
| Cabin Length (ft) | 15.5 | 56.9 | — | 12.3 |
| Overall Height (ft) | 18.18 | 25.4 | 16.6 | 11.3 |
| Rotor Diameter (ft) | 54.5 | — | 48 | — |
| Baggage Volume Ext. (cu. ft) | 128 | — | 85 | — |
| Wingspan (ft) | — | 103 | — | 43.2 |
| Aisle Step (ft) | — | Flat Floor | — | — |
| Baggage Volume Int. (cu. ft) | — | 195 | — | 20 |
| Cabin Volume (cu. ft) | — | — | 395 | 165 |