Beechcraft King Air 360 Er vs Bell 525 Relentless vs Leonardo Aw189 vs Md Helicopters (mcdonnell Douglas) 902 Explorer
The Beechcraft King Air 360ER is a twin‑turboprop fixed‑wing aircraft optimized for longer point‑to‑point travel. It offers the longest range of the group at roughly 1,800–2,000+ nautical miles (mission‑dependent) and typically carries about 6–9 passengers in executive layouts. The Bell 525 Relentless is a super‑medium twin helicopter aimed at faster, longer offshore and corporate missions than smaller rotorcraft. Its range is generally around 500–600 nautical miles, with typical seating around 12–16 passengers depending on configuration. The Leonardo AW189 is a larger, “heavy‑intermediate” twin helicopter commonly used for offshore transport and SAR. Its range is broadly similar, often about 450–550 nautical miles, and it typically accommodates roughly 12–16 passengers. The MD 902 Explorer is a light twin helicopter focused on urban/public service and short‑to‑medium missions. It has the shortest range here, commonly about 300–400 nautical miles, and usually seats around 6–8 passengers.
| Spec | Bell 525 Relentless | AGUSTA / LEONARDO AW189 |
|---|---|---|
| Summary | ||
| Cockpit | 2 | 2 |
| Min Crew | 2 | 1 |
| Total Seats | 18 | 21 |
| Flight Rules | IFR | IFR |
| Manufacturer | Bell | Leonardo |
| Aircraft Name | 525 Relentless | AW189 |
| Certification | FAA / EASA | FAA / EASA |
| Max Range (nm) | 580 | 651 |
| Max Cabin Seats | 16 | 19 |
| OEM Verification | VERIFIED | Un-Verified |
| Useful Load (lbs) | 6675 | — |
| Standard Cabin Seats | 16 | 19 |
| Flight Deck (Base Spec) | Garmin G5000H | EFIS |
| Max Cruise Speed (ktas) | 160 | 155 |
| Base Aircraft Price (USD) | $15,000,000 | $2,413,000 |
| DOC / nm | — | $ 15.57 |
| DOC / nm / Seat | — | $ 0.74 |
| Direct Operating Cost | — | $ 2,413 |
| Cabin | ||
| Cockpit | 2 | 2 |
| Min Crew | 2 | 1 |
| Total Seats | 18 | 21 |
| Max Cabin Seats | 16 | 19 |
| Standard Cabin Seats | 16 | 19 |
| Engine | ||
| FADEC | Dual-Channel | Yes |
| Model | CT7-2F1 | CT7-2E1 |
| Fuel Type | JetFuel | JetFuel |
| TBO (hrs) | 4000 | 4000 |
| Horsepower | 1800 | 1983 |
| No. of Engines | 2 | 2 |
| Fuel Capacity (gal) | 641 | — |
| Dimensions | ||
| Width (ft) | 25.77 | — |
| Length (ft) | 61.58 | 57.8 |
| Cabin Width (ft) | 7.58 | — |
| Cabin Height (ft) | 4.5 | — |
| Cabin Length (ft) | 15.5 | — |
| Overall Height (ft) | 18.18 | 16.6 |
| Rotor Diameter (ft) | 54.5 | 48 |
| Baggage Volume Ext. (cu. ft) | 128 | 85 |
| Cabin Volume (cu. ft) | — | 395 |