| Tail Number / N-Number | N91AB |
| Manufacturer | JACOBS ROBERT LEWIS |
| Model | RV-4 |
| Year Built | 1991 |
| Manufacturer's Serial Number | 2423 |
| 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 | MCELDUFF MICHAEL |
| Street | 120 DRIFTWATER CT |
| City | FAYETTEVILLE |
| State | GA |
| Zip Code | 30215-8172 |
| Region | Southern |
| County | Fayette County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1991-04-11 |
| Certificate Issue Date | 2019-03-09 |
| Last Action Date | 2021-10-28 |
| Expiration Date | 2029-03-31 |
| Status | Valid Registration |
| Mode S Code | 53112124 |
| Mode S Code Hex | AC9454 |