| Tail Number / N-Number | N561N |
| Manufacturer | SAINT LOUIS |
| Model | C-2-110 |
| Year Built | 1930 |
| Manufacturer's Serial Number | 117 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | KINNER |
| Engine Model | K5 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Average Cruising Speed | 78 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WILLIAMS DAVID RUSSELL JR |
| Street | 11023 SE 24TH PL |
| City | BELLEVUE |
| State | WA |
| Zip Code | 98004-7320 |
| Region | Northwest Mountain |
| County | King County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1954-04-25 |
| Certificate Issue Date | 2006-01-13 |
| Last Action Date | 2021-11-14 |
| Expiration Date | 2029-04-30 |
| Status | Valid Registration |
| Mode S Code | 51625715 |
| Mode S Code Hex | A72BCD |