Airbus Helicopters H225 vs Bell 525 Relentless vs Cessna 208b Grand Caravan Ex vs Piper M600 Sls
The Airbus H225 and Bell 525 Relentless are large, twin‑engine helicopters aimed at offshore, SAR, and high‑end utility missions. Both typically carry around 16–19 passengers in transport layouts, with the H225 generally offering longer endurance in heavy-lift/offshore profiles, while the 525 targets similar missions with modern avionics and a comparable long-range capability for a helicopter class. The Cessna 208B Grand Caravan EX is a single‑engine turboprop airplane optimized for rugged short-field utility and regional hauling. It commonly seats about 9–14 passengers (depending on configuration and regulations) and typically offers roughly 900–1,200 nm range, often exceeding helicopters in cruise efficiency and range for comparable payloads. The Piper M600 SLS is a pressurized, single‑engine turboprop airplane focused on owner‑pilot and business travel. It seats up to 6 and is built for faster, longer personal transport, with typical range around 1,200–1,400 nm, trading passenger capacity for speed, comfort, and altitude capability.
| Spec | AIRBUS H225 | Bell 525 Relentless | Piper M600 SLS |
|---|---|---|---|
| Summary | |||
| Cockpit | 2 | 2 | 2 |
| DOC / nm | $ 20.87 | — | $ 2.19 |
| Min Crew | 2 | 2 | 1 |
| Total Seats | 21 | 18 | 6 |
| Flight Rules | IFR | IFR | IFR |
| Manufacturer | Airbus Helicopters | Bell | Piper |
| Aircraft Name | H225 | 525 Relentless | M600 |
| Certification | FAA / EASA | FAA / EASA | FAA / EASA |
| Max Range (nm) | 454 | 580 | 1406 |
| DOC / nm / Seat | $ 0.99 | — | $ 0.55 |
| Max Cabin Seats | 28 | 16 | — |
| OEM Verification | Un-Verified | VERIFIED | VERIFIED |
| Useful Load (lbs) | 11929 | 6675 | 2200 |
| Standard Cabin Seats | 19 | 16 | 4 |
| Direct Operating Cost | $ 2,963 | — | $ 603 |
| Flight Deck (Base Spec) | EFIS | Garmin G5000H | Garmin G3000 |
| Max Cruise Speed (ktas) | 142 | 160 | 274 |
| Base Aircraft Price (USD) | $ 29,500,000 | $15,000,000 | $3,081,400 |
| Cabin | |||
| Cockpit | 2 | 2 | 2 |
| Min Crew | 2 | 2 | 1 |
| Total Seats | 21 | 18 | 5 |
| Max Cabin Seats | 28 | 16 | — |
| Standard Cabin Seats | 19 | 16 | 4 |
| Lavatory | — | — | No |
| Galley Location | — | — | MID |
| 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 | PT6A-42A |
| Fuel Type | JetFuel | JetFuel | — |
| TBO (hrs) | 3500 | 4000 | 3600 |
| Horsepower | 2100 | 1800 | 600 |
| No. of Engines | 2 | 2 | 1 |
| Fuel Capacity (gal) | 684 | 641 | 260 |
| Flat Rating | — | — | ISA + 55 |
| Dimensions | |||
| Length (ft) | 63.4 | 61.58 | 29.7 |
| Overall Height (ft) | 16.3 | 18.18 | 11.3 |
| Rotor Diameter (ft) | 53.2 | 54.5 | — |
| Cabin Volume (cu. ft) | 547 | — | 165 |
| Width (ft) | — | 25.77 | — |
| Cabin Width (ft) | — | 7.58 | 4.1 |
| Cabin Height (ft) | — | 4.5 | 4 |
| Cabin Length (ft) | — | 15.5 | 12.3 |
| Baggage Volume Ext. (cu. ft) | — | 128 | — |
| Wingspan (ft) | — | — | 43.2 |
| Baggage Volume Int. (cu. ft) | — | — | 20 |