| Tail Number / N-Number | N45BB |
| Manufacturer | CESSNA |
| Model | 421C |
| Year Built | 1979 |
| Manufacturer's Serial Number | 421C0661 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | GTSIO-520-C |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 340 hp (254 kW) |
| Total Horsepower | 680 hp (507 kW) |
| Average Cruising Speed | 90 miles per hour |
| Type of Registrant | LLC |
| Owner Name | SPEER AIRCRAFT LLC |
| Street | 300 SE RIVERSIDE DR |
| City | EVANSVILLE |
| State | IN |
| Zip Code | 47713-1036 |
| Region | Great Lakes |
| County | Vanderburgh County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1979-05-11 |
| Certificate Issue Date | 2017-12-18 |
| Last Action Date | 2020-07-20 |
| Expiration Date | 2027-12-31 |
| Status | Valid Registration |
| Mode S Code | 51267736 |
| Mode S Code Hex | A56FDE |