Compare Enstrom Helicopter F-28F vs MD Helicopters MD 520N vs Robinson Helicopters R22 Beta II
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| Manufacturer | Enstrom Helicopter | MD Helicotpers | Robinson Helicopters |
| Aircraft Type | F-28F | MD 520N | R22 Beta II |
| Base Aircraft Price (USD) | $ 550,000 | $ 2,900,000 | $ 312,000 |
| Direct Operating Cost | $ 198 | $ 416 | $ 173 |
| DOC / nm | $ 2.08 | $ 3.38 | $ 1.80 |
| DOC / nm / Seat | $ 0.69 | $ 0.85 | $ 0.90 |
| Max Cruise Speed (ktas) | 95 | 123 | 96 |
| Max Range (nm) | 229 | 210 | 250 |
| Useful Load (lbs) | 960 | 1764 | 490 |
| Total Seats | 3 | 4 | 2 |
| Cockpit | - | 2 | - |
| Standard Cabin Seats | - | 2 | - |
| Max Cabin Seats | - | 3 | - |
| Min Crew | - | 1 | - |
| Flight Deck (Base Spec) | Gyro / Analog | Gyro / Analog | Gyro / Analog |
| Flight Rules | VFR | VFR | VFR |
| Certification | FAA / EASA | FAA / EASA | FAA / EASA |
| OEM Verification | Un-Verified | Un-Verified | Un-Verified |
| Weights | |||
| MTOW (lbs) | 2600 | 3350 | 1370 |
| MTOW External Load (lbs) | - | 3850 | - |
| Max External Load (lbs) | - | 2000 | - |
| BEW (lbs) | 1640 | 1586 | 880 |
| Useful Load (lbs) | 960 | 1764 | 490 |
| Fuel Capacity (lbs) | 238 | 403 | 157 |
| Useful Load Max Fuel (lbs) | 722 | 1380 | 333 |
| Dimensions | |||
| Rotor Diameter (ft) | 32 | 27.4 | 25.2 |
| Overall Height (ft) | 9 | 8.8 | 8.8 |
| Length (ft) | 28.1 | 31.4 | 28.5 |
| Baggage Volume Int. (cu. ft) | - | - | 1.5 |
| Baggage Volume Ext. (cu. ft) | 6 | - | - |
| Engine | |||
| No. of Engines | 1 | 1 | 1 |
| Manufacturer | Enstrom Helicopter | MD Helicotpers | Robinson Helicopters |
| Model | HI0-360-F1AD | 250-C20R | O-360 |
| Horsepower | 225 | 450 | 131 |
| FADEC | No | No | No |
| TBO (hrs) | 1500 | 3500 | 2000 |
| TBO (yrs) | 12 | - | 12 |
| Fuel Type | AvGas | JetFuel | AvGas |
| Fuel Delivery | - | - | Carbureted |
| Fuel Capacity (gal) | 40 | 64 | 115 |
| Fuel Burn (gph) | - | 35 | - |
| Avionics | |||
| Flight Deck | Gyro / Analog | Gyro / Analog | Gyro / Analog |
| Flight Rules | VFR | VFR | VFR |
| Transponder | 1 | 1 | 1 |
| VHF Com | 1 | 1 | 1 |
| Cabin | |||
| Total Seats | 3 | 4 | 2 |
| Cockpit | - | 2 | - |
| Standard Cabin Seats | - | 2 | - |
| Max Cabin Seats | - | 3 | - |
| Min Crew | - | 1 | - |
| Other | |||
| Gear Type | Skids | High Skids | Skids |
| Rotorhead | 3-Blade Articulated | 5-Blade Articulated | 2-Blade Teetoring |
| Tail Rotor | 2-Blade | NOTAR | 2-Blade |
| Warranty | |||
| Pilot Training Credits | - | 1 | - |
| Airframe (Yrs) | - | 1 | - |
| Avionics (Yrs) | - | 2 | - |
| Performance | |||
| Max Cruise Speed (ktas) | 95 | 123 | 96 |
| Long Range Cruise (ktas) | 90 | 123 | 83 |
| Max Speed (Vne) | 97 | - | 102 |
| Max Range (nm) | 229 | 210 | 250 |
| Range Seats Full (nm) | 209 | 210 | 206 |
| Endurance (hrs) | - | 2.8 | - |
| Max Climb Rate (fpm) | 1150 | - | 1000 |
| Service Ceiling (ft) | 12000 | 20000 | 14000 |
| Hover IGE (ft) | 7700 | 9300 | 9400 |
| Hover OGE (ft) | - | 5600 | - |