| Tail Number / N-Number | N39SJ |
| Manufacturer | JAMES SAMMY E |
| Model | RV-4 |
| Year Built | 1999 |
| Manufacturer's Serial Number | 3269 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Co-Ownership |
| Owner Name | HARDING BRUCE C |
| Other Names |
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| Street | PO BOX 625 |
| City | WILLOW |
| State | AK |
| Zip Code | 99688-0625 |
| Region | Alaskan |
| County | Matanuska-Susitna Borough |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1999-09-06 |
| Certificate Issue Date | 2019-06-28 |
| Last Action Date | 2022-02-24 |
| Expiration Date | 2029-06-30 |
| Status | Valid Registration |
| Mode S Code | 51101011 |
| Mode S Code Hex | A48209 |