Compare Curti Zefhir vs Enstrom Helicopter 280FX Shark vs Enstrom Helicopter 480B vs Enstrom Helicopter F-28F vs Robinson Helicopters R44 Raven II vs Robinson Helicopters R66 Police Helicopter
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| Manufacturer | Curti | Enstrom Helicopter | Enstrom Helicopter | Enstrom Helicopter | Robinson Helicopters | Robinson Helicopters |
| Aircraft Type | Zefhir | 280FX Shark | 480B | F-28F | R44 Raven II | R66 Police Helicotper |
| Base Aircraft Price (USD) | $58,823 | $ 560,000 | $ 1,290,000 | $ 550,000 | $ 490,000 | $ 1,062,000 |
| Direct Operating Cost | - | $ 198 | $ 326 | $ 198 | $ 257 | $ 384 |
| DOC / nm | - | $ 1.98 | $ 2.83 | $ 2.08 | $ 2.36 | $ 3.49 |
| DOC / nm / Seat | - | $ 0.66 | $ 0.71 | $ 0.69 | $ 0.59 | $ 0.70 |
| Max Cruise Speed (ktas) | - | 100 | 115 | 95 | 109 | 110 |
| Max Range (nm) | 319 | 229 | 370 | 229 | 300 | 350 |
| Useful Load (lbs) | - | 930 | 1180 | 960 | 995 | - |
| Total Seats | 2 | 3 | 4 | 3 | 4 | 5 |
| Cockpit | - | - | 2 | - | - | 2 |
| Standard Cabin Seats | - | - | 2 | - | - | 3 |
| Max Cabin Seats | - | - | 3 | - | - | - |
| Min Crew | - | - | 1 | - | - | 1 |
| Flight Deck (Base Spec) | - | Gyro / Analog | Gyro / Analog | Gyro / Analog | Gyro / Analog | Gyro / Analog |
| Flight Rules | - | VFR | VFR | VFR | VFR | VFR |
| Certification | - | FAA / EASA | FAA / EASA | FAA / EASA | FAA / EASA | FAA / EASA |
| OEM Verification | - | Un-Verified | Un-Verified | Un-Verified | Un-Verified | Un-Verified |
| Weights | ||||||
| MTOW (lbs) | - | 2600 | 3000 | 2600 | 2500 | - |
| BEW (lbs) | - | 1670 | 1820 | 1640 | 1505 | - |
| Useful Load (lbs) | - | 930 | 1180 | 960 | 995 | - |
| Fuel Capacity (lbs) | - | 238 | 540 | 238 | 279 | - |
| Useful Load Max Fuel (lbs) | - | 692 | 640 | 722 | 716 | - |
| Max Baggage Weight (lbs) | 699 | - | - | - | - | - |
| Dimensions | ||||||
| Rotor Diameter (ft) | - | 32 | 32 | 32 | 33 | - |
| Overall Height (ft) | - | 9 | 9.6 | 9 | 10.8 | - |
| Length (ft) | - | 29.3 | 29.9 | 28.1 | 38.3 | - |
| Baggage Volume Int. (cu. ft) | - | - | - | - | 2.5 | - |
| Baggage Volume Ext. (cu. ft) | - | 6 | 22 | 6 | - | - |
| Engine | ||||||
| No. of Engines | - | 1 | 1 | 1 | 1 | 1 |
| Manufacturer | Curti | Enstrom Helicopter | Enstrom Helicopter | Enstrom Helicopter | Robinson Helicopters | Robinson Helicopters |
| Model | - | HI0-360-F1AD | 250-C20W | HI0-360-F1AD | IO-540 | RR300 |
| Horsepower | - | 225 | 305 | 225 | 245 | 300 |
| FADEC | - | No | No | No | No | No |
| TBO (hrs) | - | 1500 | 2000 | 1500 | 2200 | 2000 |
| TBO (yrs) | - | 12 | - | 12 | 12 | - |
| Fuel Type | - | AvGas | JetFuel | AvGas | AvGas | JetFuel |
| Fuel Delivery | - | Fuel Injected | - | - | Fuel Injected | - |
| Fuel Capacity (gal) | - | 40 | 90 | 40 | 29.5 | 73.6 |
| Avionics | ||||||
| Flight Deck | - | Gyro / Analog | Gyro / Analog | Gyro / Analog | Gyro / Analog | Gyro / Analog |
| Flight Rules | - | VFR | VFR | VFR | VFR | VFR |
| Autopilot | - | - | - | - | - | 1 |
| Transponder | - | 1 | 1 | 1 | 1 | - |
| VHF Com | - | 1 | 1 | 1 | 1 | - |
| VHF NAV | - | - | 1 | - | - | - |
| Cabin | ||||||
| Total Seats | 2 | 3 | 4 | 3 | 4 | 5 |
| Cockpit | - | - | 2 | - | - | 2 |
| Standard Cabin Seats | - | - | 2 | - | - | 3 |
| Max Cabin Seats | - | - | 3 | - | - | - |
| Min Crew | - | - | 1 | - | - | 1 |
| Other | ||||||
| Gear Type | - | Skids | High-Skids | Skids | Skids | Low Skids |
| Rotorhead | - | 3-Blade Articulated | 3-Blade Articulated | 3-Blade Articulated | 2-Blade Teetoring | 2-Blade Teetoring |
| Tail Rotor | - | 2-Blade | 2-Blade | 2-Blade | 2-Blade | 2-Blade |
| Performance | ||||||
| Max Cruise Speed (Mach) | 185 | - | - | - | - | - |
| Max Cruise Speed (ktas) | - | 100 | 115 | 95 | 109 | 110 |
| Long Range Cruise (ktas) | - | 90 | 109 | 90 | 100 | - |
| Max Speed (Vne) | - | 102 | 125 | 97 | 130 | - |
| Max Range (nm) | 319 | 229 | 370 | 229 | 300 | 350 |
| Range Seats Full (nm) | - | 207 | 209 | 209 | 257 | - |
| Endurance (hrs) | - | - | 4.5 | - | - | - |
| Max Climb Rate (fpm) | - | 1150 | 1600 | 1150 | 1000 | - |
| Service Ceiling (ft) | - | 12000 | 13000 | 12000 | 14000 | - |
| Hover IGE (ft) | - | 7700 | 12300 | 7700 | 8950 | - |
| Hover OGE (ft) | - | - | 5400 | - | - | - |