| Tail Number / N-Number | N1944X |
| Manufacturer | JELINEK VLADIMIR |
| Model | CHALLENGER II |
| Year Built | 2004 |
| Manufacturer's Serial Number | CH2-0604-2492 |
| 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 | 503DC |
| Engine Type | 2 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 52 hp (39 kW) |
| Type of Registrant | Individual |
| Owner Name | JESSOP JOE D |
| Street | 2238 130TH AVE |
| City | EMERALD |
| State | WI |
| Zip Code | 54013-8304 |
| Region | Great Lakes |
| County | St. Croix County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2007-05-08 |
| Certificate Issue Date | 2019-09-30 |
| Last Action Date | 2022-04-12 |
| Expiration Date | 2029-09-30 |
| Status | Valid Registration |
| Mode S Code | 50275001 |
| Mode S Code Hex | A17A01 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N1944X.
| Tail Number / N-Number | N1944X |
| Manufacturer | CESSNA |
| Model | 182H |
| Manufacturer's Serial Number | 18256044 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 119 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | CESSNA AIRCRAFT CO |
| Street | ONE CESSNA BLVD |
| City | WICHITA |
| State | KS |
| Zip Code | 67201 |
| Region | Central |
| County | St. Croix County |
| Last Status | Valid Registration |
| Cancellation Date | 1965-03-19 |
| Exported To | SOUTH AFRICA |