Compare Beechcraft KingAir Denali vs Leonardo AW139 vs Robinson Helicopters R66
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| Manufacturer | GE® Aerospace | Leonardo | Robinson Helicopters |
| Aircraft Type | KingAir Denali | AW139 | R66 |
| Base Aircraft Price (USD) | $4,150,000 | $15,900,000 | $ 920,000 |
| Direct Operating Cost | $ 1,111 | $ 1,929 | $ 384 |
| DOC / nm | $ 4.08 | $ 11.69 | $ 3.49 |
| DOC / nm / Seat | $ 0.68 | $ 0.69 | $ 0.70 |
| Max Cruise Speed (ktas) | 285 | 165 | 110 |
| Max Range (nm) | 1600 | 573 | 350 |
| Useful Load (lbs) | 3280 | 4701 | 1355 |
| Total Seats | 11 | 17 | 5 |
| Cockpit | 2 | 2 | 2 |
| Standard Cabin Seats | 7 | 15 | 3 |
| Max Cabin Seats | 9 | 15 | - |
| Min Crew | 1 | 2 | 1 |
| Flight Deck (Base Spec) | Rockwell Collins Pro Line Fusion | EFIS | Gyro / Analog |
| Flight Rules | IFR | IFR | VFR |
| Certification | FAA / EASA | FAA / EASA | FAA / EASA |
| OEM Verification | VERIFIED | Un-Verified | Un-Verified |
| Weights | |||
| MRAMP (lbs) | 10545 | - | - |
| MTOW (lbs) | 10485 | 15430 | 2700 |
| MLW (lbs) | 9832 | - | - |
| MZFW (lbs) | 9378 | - | - |
| BOW (lbs) | 7265 | 9409 | - |
| BEW (lbs) | 7205 | 7985 | 1345 |
| Useful Load (lbs) | 3280 | 4701 | 1355 |
| Max Payload (lbs) | 2113 | - | - |
| Fuel Capacity (lbs) | - | 3276 | 493 |
| Useful Load Max Fuel (lbs) | - | 1937 | 862 |
| Payload Max Fuel (lbs) | 1100 | - | - |
| Max Baggage Weight (lbs) | 350 | - | - |
| Dimensions | |||
| Wingspan (ft) | 54.3 | - | - |
| Rotor Diameter (ft) | - | 54.7 | 33 |
| Overall Height (ft) | 4.65 | 16.4 | 11.4 |
| Length (ft) | 14.86 | 54.7 | 38.3 |
| Cabin Height (ft) | 4.8 | - | - |
| Cabin Width (ft) | 4.5 | - | - |
| Cabin Width - Floor (ft) | 4.1 | - | - |
| Cabin Length (ft) | 12.6 | - | - |
| Cabin Length - Seating (ft) | 12.6 | - | - |
| Cabin Volume (cu. ft) | - | 282 | 50 |
| Baggage Volume Int. (cu. ft) | 48 | - | - |
| Baggage Volume Ext. (cu. ft) | - | 120 | 18 |
| Engine | |||
| No. of Engines | 1 | 2 | 1 |
| Manufacturer | GE® Aerospace | Leonardo | Robinson Helicopters |
| Model | Catalyst™ | PT6C-67C | RR300 |
| Horsepower | - | 1679 | 300 |
| FADEC | - | Yes | No |
| TBO (hrs) | - | 5000 | 2000 |
| Fuel Type | - | JetFuel | JetFuel |
| Fuel Capacity (gal) | - | 414 | 73.6 |
| Avionics | |||
| Flight Deck | Garmin G3000 | EFIS | Gyro / Analog |
| Flight Rules | IFR | IFR | VFR |
| FMS | 1 | 2 | - |
| Autopilot | 1 | 2 | - |
| PFD | 2 | - | - |
| MFD | 1 | - | - |
| GPS | 1 | 1 | - |
| Transponder | 1 | 1 | 1 |
| VHF Com | 2 | 1 | 1 |
| VHF NAV | 2 | 1 | 1 |
| Cabin | |||
| Total Seats | 11 | 17 | 5 |
| Cockpit | 2 | 2 | 2 |
| Standard Cabin Seats | 7 | 15 | 3 |
| Max Cabin Seats | 9 | 15 | - |
| Min Crew | 1 | 2 | 1 |
| Lavatory | 1 Flushing | - | - |
| Lavatory Location | AFT | - | - |
| Galley / Refreshment | No | - | - |
| SL Cabin Altitude (ft) | 11065 | - | - |
| Cabin Pressure (psi) | 5 | - | - |
| Other | |||
| Gear Type | - | Retractable Wheels | Low Skids |
| Rotorhead | - | 5-Blade Articulated | 2-Blade Teetoring |
| Tail Rotor | - | 4-Blade | 2-Blade |
| Performance | |||
| Max Cruise Speed (ktas) | 285 | 165 | 110 |
| Long Range Cruise (ktas) | - | 140 | 110 |
| Max Speed (Vne) | - | 167 | 130 |
| Stall Speed - Clean (kias) | 75 | - | - |
| Max Range (nm) | 1600 | 573 | 350 |
| Range Seats Full (nm) | - | 302 | 341 |
| Max Range Crew + 4 (nm) | 1600 | - | - |
| Take-off FL (ft) | 2950 | - | - |
| Take-Off (5000 / ISA + 10) | 3375 | - | - |
| Max Climb Rate (fpm) | - | 2140 | 1000 |
| Service Ceiling (ft) | - | 20000 | 14000 |
| Hover IGE (ft) | - | 15360 | 10000 |
| Hover OGE (ft) | - | 8130 | 10000 |