| Tail Number / N-Number | N512S |
| Manufacturer | STEIGINGA |
| Model | THORP T-18 |
| Manufacturer's Serial Number | 512 |
| 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) |
| Engine Manufacturer | LYCOMING |
| Engine Model | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Individual |
| Owner Name | PENGILLEY JOSEPH G |
| Street | PO BOX 772 |
| City | ROSAMOND |
| State | CA |
| Zip Code | 93560-0772 |
| Region | Western-Pacific |
| County | Kern County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1979-12-14 |
| Certificate Issue Date | 2021-08-11 |
| Last Action Date | 2021-08-11 |
| Expiration Date | 2028-08-31 |
| Status | Valid Registration |
| Mode S Code | 51465155 |
| Mode S Code Hex | A66A6D |