Models
| Model | Type | Registered | Valid | Built |
|---|---|---|---|---|
| CHALLENGER II | Fixed wing single engine | 1 | 1 | ?-? |
1 models and 1 aircraft registered with the FAA under the manufacturer name HOLLARS JOSEPH.
| Model | Type | Registered | Valid | Built |
|---|---|---|---|---|
| CHALLENGER II | Fixed wing single engine | 1 | 1 | ?-? |