| Tail Number / N-Number | N121PF |
| Manufacturer | WINSHIP THOMAS W |
| Model | VANS AIRCRAFT RV-4 |
| Year Built | 1990 |
| Manufacturer's Serial Number | 2498 |
| 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 | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | BEAUMONT JAMES F |
| Street | 24666 BARBARA LN |
| City | CALDWELL |
| State | ID |
| Zip Code | 83607-8808 |
| Region | Northwest Mountain |
| County | Canyon County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1991-02-07 |
| Certificate Issue Date | 2021-11-18 |
| Last Action Date | 2021-11-18 |
| Expiration Date | 2028-11-30 |
| Status | Valid Registration |
| Mode S Code | 50054264 |
| Mode S Code Hex | A058B4 |