| Tail Number / N-Number | N1491A |
| Manufacturer | PIPER |
| Model | PA-20 |
| Year Built | 1952 |
| Manufacturer's Serial Number | 20-840 |
| 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 | LYCOMING |
| Engine Model | 0-290 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 140 hp (104 kW) |
| Average Cruising Speed | 94 miles per hour |
| Type of Registrant | Individual |
| Owner Name | KNUTH MATTHEW WILLIAM |
| Street | 1632 16M AVE SW |
| City | WILTON |
| State | ND |
| Zip Code | 58579-9363 |
| Region | Great Lakes |
| County | McLean County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-01-19 |
| Certificate Issue Date | 2018-10-04 |
| Last Action Date | 2021-08-18 |
| Expiration Date | 2028-10-31 |
| Status | Valid Registration |
| Mode S Code | 50143233 |
| Mode S Code Hex | A0C69B |