| Tail Number / N-Number | N121TD |
| Manufacturer | BEECH |
| Model | C-12 |
| Year Built | 1979 |
| Manufacturer's Serial Number | 78-23138 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 15 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | PT6A SER |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 750 hp (560 kW) |
| Total Horsepower | 1,500 hp (1,119 kW) |
| Type of Registrant | Government |
| Owner Name | IDAHO DEPARTMENT OF LAW ENFORCEMENT |
| Street | 1390 W GOWEN RD |
| City | BOISE |
| State | ID |
| Zip Code | 83705-5504 |
| Region | Northwest Mountain |
| County | Ada County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1999-03-15 |
| Certificate Issue Date | 1998-10-13 |
| Last Action Date | 2021-07-15 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 50054426 |
| Mode S Code Hex | A05916 |