| Tail Number / N-Number | N645D |
| Manufacturer | BEECH |
| Model | C35 |
| Year Built | 1951 |
| Manufacturer's Serial Number | D-2910 |
| Aircraft Type | Fixed wing single engine |
| 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 | CONT MOTOR |
| Engine Model | E185 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 205 hp (153 kW) |
| Average Cruising Speed | 120 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | RIGGIN FLIGHT SERVICE INC |
| Street | 1600 AIRPORT DR |
| City | MADISON |
| State | SD |
| Zip Code | 57042-7217 |
| Region | Great Lakes |
| County | Lake County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1955-08-27 |
| Certificate Issue Date | 2020-04-28 |
| Last Action Date | 2022-11-15 |
| Expiration Date | 2030-04-30 |
| Status | Valid Registration |
| Mode S Code | 52074031 |
| Mode S Code Hex | A87819 |