| Tail Number / N-Number | N121GJ |
| Manufacturer | BEECH |
| Model | 58P |
| Year Built | 1976 |
| Manufacturer's Serial Number | TJ-62 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | TSIO-520 SER |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 300 hp (224 kW) |
| Total Horsepower | 600 hp (448 kW) |
| Average Cruising Speed | 123 miles per hour |
| Type of Registrant | LLC |
| Owner Name | TMOF LLC |
| Street | 2360 SANDY SHORE |
| City | LENOIR CITY |
| State | TN |
| Zip Code | 37772 |
| Region | Central |
| County | Loudon County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1976-05-21 |
| Certificate Issue Date | 2019-11-26 |
| Last Action Date | 2022-07-25 |
| Expiration Date | 2029-11-30 |
| Status | Valid Registration |
| Mode S Code | 50054010 |
| Mode S Code Hex | A05808 |