| Tail Number / N-Number | N771W |
| Manufacturer | WILLIAMS RONALD K |
| Model | RV-4 |
| Manufacturer's Serial Number | NB375 |
| 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 | 0-360-A1D |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Individual |
| Owner Name | KALMAR ISTVAN |
| Street | 1544 BELLECHASE DR |
| City | KELLER |
| State | TX |
| Zip Code | 76262-9334 |
| Region | Southwestern |
| County | Denton County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1998-02-25 |
| Certificate Issue Date | 2021-06-17 |
| Last Action Date | 2022-02-02 |
| Expiration Date | 2028-06-30 |
| Status | Valid Registration |
| Mode S Code | 52467262 |
| Mode S Code Hex | AA6EB2 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N771W.
| Tail Number / N-Number | N771W |
| Manufacturer | OGDEN S J III/GORGAS H L III |
| Model | VANS RV-4 |
| Manufacturer's Serial Number | 3531 |
| 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) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | OGDEN III SEWARD J |
| Street | PO BOX 879 |
| City | PUTNEY |
| State | VT |
| Zip Code | 05346-0879 |
| County | Denton County |
| Country | US |
| Certificate Issue Date | 1995-10-30 |
| Last Action Date | 1996-12-20 |
| Last Status | Valid Registration |
| Cancellation Date | 1997-12-12 |