| Tail Number / N-Number | N91SG |
| Manufacturer | GILBERT THOMAS J |
| Model | KITFOX IV 1200 |
| Manufacturer's Serial Number | ICU100 |
| 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) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | GILBERT THOMAS J |
| Street | 705 SEVENTH ST |
| City | MORRISON |
| State | OK |
| Zip Code | 73061-9704 |
| Region | Southwestern |
| County | Noble County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 1997-05-19 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 53112751 |
| Mode S Code Hex | AC95E9 |