| Tail Number / N-Number | N11904 |
| Manufacturer | SPARTAN |
| Model | C2-60 |
| Year Built | 1931 |
| Manufacturer's Serial Number | J-11 |
| 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 | JACOBS |
| Engine Model | L3 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 55 hp (41 kW) |
| Average Cruising Speed | 60 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | YELLOWSTONE AVIATION INC |
| Street | PO BOX 6291 |
| City | JACKSON |
| State | WY |
| Zip Code | 83002-6291 |
| Region | Northwest Mountain |
| County | Teton County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Certificate Issue Date | 1997-10-02 |
| Last Action Date | 2021-03-17 |
| Expiration Date | 2028-08-31 |
| Status | Valid Registration |
| Mode S Code | 50050027 |
| Mode S Code Hex | A05017 |