Models
| Model | Type | Registered | Valid | Built |
|---|---|---|---|---|
| CHALLENGER II CW SPC | Fixed wing single engine | 1 | 1 | 2003-2003 |
1 models and 1 aircraft registered with the FAA under the manufacturer name MUELLER MICHAEL WALTER.
| Model | Type | Registered | Valid | Built |
|---|---|---|---|---|
| CHALLENGER II CW SPC | Fixed wing single engine | 1 | 1 | 2003-2003 |