| Tail Number / N-Number | N81WB |
| Manufacturer | BOHNY WILLIAM C |
| Model | VANS RV-4 |
| Year Built | 1991 |
| Manufacturer's Serial Number | 878 |
| 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 | GIBBS ANTHONEE M |
| Street | 7953 4TH AVE SW |
| City | SEATTLE |
| State | WA |
| Zip Code | 98106-2170 |
| Region | Northwest Mountain |
| County | King County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1991-08-14 |
| Certificate Issue Date | 2021-07-24 |
| Last Action Date | 2021-07-24 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 52604371 |
| Mode S Code Hex | AB08F9 |