| Tail Number / N-Number | N221MG |
| Manufacturer | MIKOYAN GUREVICH |
| Model | MIG 21 |
| Year Built | 1969 |
| Manufacturer's Serial Number | 02685145 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | MARINE AVIATION MUSEUM INC |
| Street | 8501 TELEPHONE RD |
| City | HOUSTON |
| State | TX |
| Zip Code | 77061-4731 |
| Region | Southwestern |
| County | Harris County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2003-02-07 |
| Certificate Issue Date | 2011-12-16 |
| Last Action Date | 2020-11-20 |
| Expiration Date | 2027-12-31 |
| Status | Valid Registration |
| Mode S Code | 50362722 |
| Mode S Code Hex | A1E5D2 |