| Tail Number / N-Number | N6104F |
| Manufacturer | MADER ALLEN J |
| Model | CHALLENGER II |
| Year Built | 2000 |
| Manufacturer's Serial Number | 1933 |
| 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 | BOMBARDIER |
| Engine Model | ROTAX (ALL) |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Kit Manufacturer | QUAD CITY ULTRALIGHT ACFT CORP |
| Kit Model | CHALLENGER II |
| Type of Registrant | Individual |
| Owner Name | MADER ALLEN JOSEPH |
| Street | W6942 PERKINSTOWN AVE |
| City | MEDFORD |
| State | WI |
| Zip Code | 54451-9467 |
| Region | Great Lakes |
| County | Taylor County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2000-11-09 |
| Certificate Issue Date | 2000-06-02 |
| Last Action Date | 2020-03-09 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 51770650 |
| Mode S Code Hex | A7F1A8 |