| Tail Number / N-Number | N561FS |
| Manufacturer | GUMMO THOMAS L |
| Model | GUMMO SPECIAL |
| Year Built | 2001 |
| Manufacturer's Serial Number | 2250 |
| 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-540 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Kit Manufacturer | VANS AIRCRAFT INC |
| Kit Model | RV-4 |
| Type of Registrant | Individual |
| Owner Name | GUMMO THOMAS L |
| Street | 15836 SAINT TIMOTHY RD |
| City | APPLE VALLEY |
| State | CA |
| Zip Code | 92307-2517 |
| Region | Western-Pacific |
| County | San Bernardino County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2001-11-26 |
| Certificate Issue Date | 1999-06-11 |
| Last Action Date | 2020-02-13 |
| Expiration Date | 2027-07-31 |
| Status | Valid Registration |
| Mode S Code | 51625457 |
| Mode S Code Hex | A72B2F |