| Tail Number / N-Number | N125JS |
| Manufacturer | SNYDER JOHN W III |
| Model | RV-4 |
| Year Built | 1991 |
| Manufacturer's Serial Number | 1360 |
| 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 | Individual |
| Owner Name | CARTER ROBERT S |
| Street | PO BOX 502 |
| City | MARICOPA |
| State | AZ |
| Zip Code | 85139-0240 |
| Region | Western-Pacific |
| County | Pinal County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1991-04-29 |
| Certificate Issue Date | 2010-03-10 |
| Last Action Date | 2022-05-09 |
| Expiration Date | 2029-10-31 |
| Status | Valid Registration |
| Mode S Code | 50063436 |
| Mode S Code Hex | A0671E |