| Tail Number / N-Number | N521CF |
| Manufacturer | CALLAHAN CLARENCE F |
| Model | CHALLENGER II |
| Year Built | 1990 |
| Manufacturer's Serial Number | CH2-0490-0521 |
| 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 |
| Type of Registrant | Co-Ownership |
| Owner Name | ROGGATZ ALVIN R |
| Other Names |
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| Street | 202 DRIFTWOOD ST |
| City | CORRECTIONVILLE |
| State | IA |
| Zip Code | 51016-1018 |
| Region | Central |
| County | Woodbury County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1997-05-15 |
| Certificate Issue Date | 2003-03-31 |
| Last Action Date | 2019-09-25 |
| Expiration Date | 2022-11-30 |
| Status | Third Notice for Registration Renewal |
| Mode S Code | 51506335 |
| Mode S Code Hex | A68CDD |