| Tail Number / N-Number | N20257 |
| Manufacturer | PIPER |
| Model | J-3 |
| Year Built | 1938 |
| Manufacturer's Serial Number | 2057 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | A40 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 40 hp (30 kW) |
| Average Cruising Speed | 56 miles per hour |
| Type of Registrant | Individual |
| Owner Name | RETTICK JOHN J |
| Street | 9193 RETTICK LN |
| City | BLOOMINGTON |
| State | IL |
| Zip Code | 61705-9295 |
| Region | Great Lakes |
| County | Sangamon County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1958-08-05 |
| Certificate Issue Date | 2003-12-16 |
| Last Action Date | 2022-02-08 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 50316230 |
| Mode S Code Hex | A19C98 |