| Tail Number / N-Number | N400RU |
| Manufacturer | UNDERWOOD J R |
| Model | VANS RV-4 |
| Year Built | 2008 |
| Manufacturer's Serial Number | 2405 |
| 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 | O-360-F1A6 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Kit Manufacturer | VANS AIRCRAFT INC |
| Kit Model | RV-4 |
| Type of Registrant | Individual |
| Owner Name | BELL JAKE T |
| Street | 3851 PINE RIDGE WAY |
| City | LEXINGTON |
| State | KY |
| Zip Code | 40514-1770 |
| Region | Central |
| County | Fayette County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2008-07-28 |
| Certificate Issue Date | 2023-01-27 |
| Last Action Date | 2023-02-01 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 51127053 |
| Mode S Code Hex | A4AE2B |