| Tail Number / N-Number | N644ME |
| Manufacturer | ROBINSON HELICOPTER COMPANY |
| Model | R44 II |
| Year Built | 2013 |
| Manufacturer's Serial Number | 13439 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-540-AE1A5 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Type of Registrant | LLC |
| Owner Name | RAS AVIATION LLC |
| Street | 2708 N 1300 E RD |
| City | MANSFIELD |
| State | IL |
| Zip Code | 61854 |
| Region | Great Lakes |
| County | Piatt County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2013-02-01 |
| Certificate Issue Date | 2021-07-21 |
| Last Action Date | 2021-07-21 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 52072457 |
| Mode S Code Hex | A8752F |