| Tail Number / N-Number | N80BK |
| Manufacturer | KOPEIKA ROBERT C |
| Model | S-21 |
| Year Built | 2021 |
| Manufacturer's Serial Number | 12180033 |
| 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 | ROTAX |
| Engine Model | 912ULS SERIES |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Kit Manufacturer | RANS DESIGNS INC |
| Kit Model | S-21 OUTBOUND |
| Type of Registrant | Individual |
| Owner Name | KOPEIKA ROBERT C |
| Street | 10125 S CENTRAL PARK AVE |
| City | EVERGREEN PARK |
| State | IL |
| Zip Code | 60805-3716 |
| Region | Great Lakes |
| County | Cook County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2021-06-23 |
| Certificate Issue Date | 2021-03-17 |
| Last Action Date | 2021-03-17 |
| Expiration Date | 2028-03-31 |
| Status | Valid Registration |
| Mode S Code | 52557647 |
| Mode S Code Hex | AADFA7 |