| Tail Number / N-Number | N21169 |
| Manufacturer | STINSON |
| Model | HW75 |
| Year Built | 1939 |
| Manufacturer's Serial Number | 7028 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | A&C75 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 75 hp (56 kW) |
| Average Cruising Speed | 90 miles per hour |
| Type of Registrant | Individual |
| Owner Name | MELLINGEN MARK S |
| Street | 1994 HAHN TRL |
| City | HILLMAN |
| State | MI |
| Zip Code | 49746-9616 |
| Region | Great Lakes |
| County | Montmorency County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1959-06-04 |
| Certificate Issue Date | 2001-01-19 |
| Last Action Date | 2022-02-23 |
| Expiration Date | 2029-05-31 |
| Status | Valid Registration |
| Mode S Code | 50340205 |
| Mode S Code Hex | A1C085 |