| Tail Number / N-Number | N91872 |
| Manufacturer | SCHWEIZER |
| Model | SGS 1-23 |
| Year Built | 1949 |
| Manufacturer's Serial Number | 7 |
| 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 | FUESTON VERNON A |
| Street | 820 OLD MONTAGUE RD |
| City | MONTAGUE |
| State | CA |
| Zip Code | 96064-9280 |
| Region | Western-Pacific |
| County | Siskiyou County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-03-31 |
| Certificate Issue Date | 2016-10-28 |
| Last Action Date | 2021-06-23 |
| Expiration Date | 2022-10-31 |
| Status | Registration Expired - Pending Cancellation |
| Mode S Code | 53133713 |
| Mode S Code Hex | ACB7CB |