| Tail Number / N-Number | N91878 |
| Manufacturer | SCHWEIZER |
| Model | SGS 1-23 |
| Year Built | 1950 |
| Manufacturer's Serial Number | 14 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Average Cruising Speed | 58 miles per hour |
| Type of Registrant | Individual |
| Owner Name | BONSER THOMAS A |
| Street | 7152 WALNUTWOOD DR |
| City | CINCINNATI |
| State | OH |
| Zip Code | 45241 |
| Region | Great Lakes |
| County | Hamilton County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-05-17 |
| Certificate Issue Date | 2021-03-12 |
| Last Action Date | 2021-03-12 |
| Expiration Date | 2028-03-31 |
| Status | Valid Registration |
| Mode S Code | 53133721 |
| Mode S Code Hex | ACB7D1 |