| Tail Number / N-Number | N940PB |
| Manufacturer | ALEXANDER SCHLEICHER GMBH & CO |
| Model | ASK 21 |
| Year Built | 2018 |
| Manufacturer's Serial Number | 21955 |
| Aircraft Type | Glider |
| 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 | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 0 engines |
| Type of Registrant | Corporation |
| Owner Name | ST LOUIS SOARING ASSOCIATION INC |
| Street | 9512 DAVID SCOTT DR |
| City | SAINT LOUIS |
| State | MO |
| Zip Code | 63126-2504 |
| Region | Central |
| County | St. Louis city |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2018-09-20 |
| Certificate Issue Date | 2018-10-04 |
| Last Action Date | 2021-05-17 |
| Expiration Date | 2028-10-31 |
| Status | Valid Registration |
| Mode S Code | 53207157 |
| Mode S Code Hex | AD0E6F |