| Tail Number / N-Number | N626FF |
| Manufacturer | KNAPP ROBERT H |
| Model | RV4 |
| Year Built | 2005 |
| Manufacturer's Serial Number | 3598 |
| 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 | IO-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 150 hp (112 kW) |
| Kit Manufacturer | VANS AIRCRAFT INC |
| Kit Model | RV-4 |
| Type of Registrant | Individual |
| Owner Name | KNAPP EDWARD |
| Street | 5621 FRONTIER DR |
| City | ZEPHYRHILLS |
| State | FL |
| Zip Code | 33540-7609 |
| Region | Southern |
| County | Pinellas County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2005-11-02 |
| Certificate Issue Date | 2009-03-05 |
| Last Action Date | 2022-08-14 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 52026412 |
| Mode S Code Hex | A82D0A |