Models
| Model | Type | Registered | Valid | Built |
|---|---|---|---|---|
| CHALLENGER II CW | Fixed wing single engine | 1 | 1 | 1992-1992 |
1 models and 1 aircraft registered with the FAA under the manufacturer name HAMMER ROBERT H JR.
| Model | Type | Registered | Valid | Built |
|---|---|---|---|---|
| CHALLENGER II CW | Fixed wing single engine | 1 | 1 | 1992-1992 |