| Tail Number / N-Number | N991GB |
| Manufacturer | DUNCAN JAMES A |
| Model | PITTS S-1T |
| Manufacturer's Serial Number | D286 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | AEIO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Individual |
| Owner Name | SMITH TIM R |
| Street | 304 WOODWAY DR |
| City | VICTORIA |
| State | TX |
| Zip Code | 77904-1122 |
| Region | Southwestern |
| County | Victoria County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1987-10-30 |
| Certificate Issue Date | 2023-02-12 |
| Last Action Date | 2023-02-12 |
| Expiration Date | 2030-02-28 |
| Status | Valid Registration from a Trainee |
| Mode S Code | 53353362 |
| Mode S Code Hex | ADD6F2 |