| Tail Number / N-Number | N191DR |
| Manufacturer | STOLL DARRELL R |
| Model | CHALLENGER II |
| Year Built | 2007 |
| Manufacturer's Serial Number | 1076 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Light Sport |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROTAX |
| Engine Model | 503 SERIES |
| Engine Type | 2 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 52 hp (39 kW) |
| Type of Registrant | Individual |
| Owner Name | THURMAN W WALTER |
| Street | 209 W MAIN ST |
| City | WASHINGTON |
| State | IN |
| Zip Code | 47501-2606 |
| Region | Great Lakes |
| County | Daviess County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2007-01-04 |
| Certificate Issue Date | 2012-11-19 |
| Last Action Date | 2021-06-21 |
| Expiration Date | 2028-11-30 |
| Status | Valid Registration |
| Mode S Code | 50266075 |
| Mode S Code Hex | A16C3D |