| Tail Number / N-Number | N28318 |
| Manufacturer | INTERSTATE |
| Model | S-1A |
| Year Built | 1941 |
| Manufacturer's Serial Number | 10 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | A&C65 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 65 hp (48 kW) |
| Average Cruising Speed | 77 miles per hour |
| Type of Registrant | Individual |
| Owner Name | ROBINSON STEPHEN |
| Street | 219 SCHERMAN WAY |
| City | LIVERMORE |
| State | CA |
| Zip Code | 94550-3919 |
| Region | Western-Pacific |
| County | Alameda County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1955-08-26 |
| Certificate Issue Date | 2005-11-01 |
| Last Action Date | 2021-10-13 |
| Expiration Date | 2029-03-31 |
| Status | Valid Registration |
| Mode S Code | 50555674 |
| Mode S Code Hex | A2DBBC |