Airbus Helicopters H225 vs Bell 525 Relentless vs Gulfstream G700 vs Piper M600 Sls
The Airbus H225 and Bell 525 Relentless are large, twin‑engine helicopters suited to vertical lift missions, while the Gulfstream G700 and Piper M600 SLS are fixed‑wing business aircraft aimed at point‑to‑point travel. In category, the H225 is a heavy multi‑role helicopter (often offshore/SAR/utility), and the 525 is a modern “super‑medium” class helicopter focused on corporate and VIP transport. The G700 is an ultra‑long‑range business jet, whereas the M600 SLS is a single‑engine pressurized turboprop. For range, the G700 is by far the longest‑leg option, designed for true intercontinental routes. The M600 SLS offers solid regional range but is not in the same league as the G700. Both helicopters have shorter ranges than the jets and typically operate in the few‑hundred‑nautical‑mile class depending on mission fit, with the H225 generally offering strong endurance for its class and the 525 targeting longer legs among helicopters. Passenger capacity also diverges: the G700 can carry the most people in typical business configurations, the H225 can be configured for high passenger loads in utility/offshore layouts, the 525 usually carries fewer in premium seating, and the M600 SLS is the smallest, typically seating around five to six.
| Spec | AIRBUS H225 | Bell 525 Relentless | Gulfstream G700 | Piper M600 SLS |
|---|---|---|---|---|
| Summary | ||||
| Cockpit | 2 | 2 | 3 | 2 |
| DOC / nm | $ 20.87 | — | — | $ 2.19 |
| Min Crew | 2 | 2 | 4 | 1 |
| Total Seats | 21 | 18 | 16 | 6 |
| Flight Rules | IFR | IFR | — | IFR |
| Manufacturer | Airbus Helicopters | Bell | Gulfstream | Piper |
| Aircraft Name | H225 | 525 Relentless | G700 | M600 |
| Certification | FAA / EASA | FAA / EASA | In Development | FAA / EASA |
| Max Range (nm) | 454 | 580 | 7500 | 1406 |
| DOC / nm / Seat | $ 0.99 | — | — | $ 0.55 |
| Max Cabin Seats | 28 | 16 | 19 | — |
| OEM Verification | Un-Verified | VERIFIED | Un-Verified | VERIFIED |
| Useful Load (lbs) | 11929 | 6675 | — | 2200 |
| Standard Cabin Seats | 19 | 16 | 12 | 4 |
| Direct Operating Cost | $ 2,963 | — | — | $ 603 |
| Flight Deck (Base Spec) | EFIS | Garmin G5000H | Gulfstream Symmetry Flight Deck | Garmin G3000 |
| Max Cruise Speed (ktas) | 142 | 160 | 516 | 274 |
| Base Aircraft Price (USD) | $ 29,500,000 | $15,000,000 | $78,000,000 | $3,081,400 |
| Cabin | ||||
| Cockpit | 2 | 2 | 2 | 2 |
| Min Crew | 2 | 2 | 4 | 1 |
| Total Seats | 21 | 18 | 16 | 5 |
| Max Cabin Seats | 28 | 16 | 19 | — |
| Standard Cabin Seats | 19 | 16 | 12 | 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 | Yes | Dual-Channel | — | No |
| Model | Makila 2A1 | CT7-2F1 | Pearl 700 | PT6A-42A |
| Fuel Type | JetFuel | JetFuel | — | — |
| TBO (hrs) | 3500 | 4000 | On Condition | 3600 |
| Horsepower | 2100 | 1800 | — | 600 |
| No. of Engines | 2 | 2 | 2 | 1 |
| Fuel Capacity (gal) | 684 | 641 | — | 260 |
| Thrust (lbs) | — | — | 18250 | — |
| Flat Rating | — | — | — | ISA + 55 |
| Dimensions | ||||
| Length (ft) | 63.4 | 61.58 | 109.9 | 29.7 |
| Overall Height (ft) | 16.3 | 18.18 | 25.4 | 11.3 |
| Rotor Diameter (ft) | 53.2 | 54.5 | — | — |
| Cabin Volume (cu. ft) | 547 | — | — | 165 |
| Width (ft) | — | 25.77 | — | — |
| 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 |
| Baggage Volume Ext. (cu. ft) | — | 128 | — | — |
| Wingspan (ft) | — | — | 103 | 43.2 |
| Aisle Step (ft) | — | — | Flat Floor | — |
| Baggage Volume Int. (cu. ft) | — | — | 195 | 20 |