| Tail Number / N-Number | N91877 |
| Manufacturer | SCHWEIZER |
| Model | SGS 1-23 |
| Manufacturer's Serial Number | 12 |
| 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 | PETERSON ADAM C |
| Street | 12502 MARRADI AVE |
| City | BAKERSFIELD |
| State | CA |
| Zip Code | 93312-6417 |
| Region | Western-Pacific |
| County | Kern County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1955-11-30 |
| Certificate Issue Date | 2019-04-25 |
| Last Action Date | 2021-11-12 |
| Expiration Date | 2029-04-30 |
| Status | Valid Registration |
| Mode S Code | 53133720 |
| Mode S Code Hex | ACB7D0 |