| Tail Number / N-Number | N5680K |
| Manufacturer | BEECH |
| Model | 35-B33 |
| Year Built | 1964 |
| Manufacturer's Serial Number | CD-803 |
| 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 | I0-470 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Average Cruising Speed | 138 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | HARKNESS DOUGLAS M |
| Other Names |
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| Street | 9210 S DAMEN AVE |
| City | CHICAGO |
| State | IL |
| Zip Code | 60643-6301 |
| Region | Great Lakes |
| County | Cook County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Special Flight Permit |
| Airworthiness Date | 1972-05-16 |
| Certificate Issue Date | 2002-12-09 |
| Last Action Date | 2021-09-12 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 51643404 |
| Mode S Code Hex | A74704 |