| Tail Number / N-Number | N820R |
| Manufacturer | BEECH |
| Model | K35 |
| Year Built | 1959 |
| Manufacturer's Serial Number | D-6046 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | I0-470 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Average Cruising Speed | 150 miles per hour |
| Type of Registrant | LLC |
| Owner Name | RETTIG & ASSOCIATES LLC |
| Street | 148 S COVE CT |
| City | BESSEMER |
| State | AL |
| Zip Code | 35022-4291 |
| Region | Southern |
| County | Shelby County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1959-07-15 |
| Certificate Issue Date | 2007-01-03 |
| Last Action Date | 2022-03-08 |
| Expiration Date | 2029-07-31 |
| Status | Valid Registration |
| Mode S Code | 52631122 |
| Mode S Code Hex | AB3252 |