| Tail Number / N-Number | N104NS |
| Manufacturer | GROB-WERKE |
| Model | TWIN ASTIR |
| Year Built | 1978 |
| Manufacturer's Serial Number | 3043 |
| 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 | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Type of Registrant | Corporation |
| Owner Name | WABASH VALLEY SOARING ASSN INC |
| Street | 13870 HANGAR RD |
| City | LAWRENCEVILLE |
| State | IL |
| Zip Code | 62439 |
| Region | Great Lakes |
| County | Lawrence County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2014-04-11 |
| Certificate Issue Date | 2015-07-22 |
| Last Action Date | 2021-04-23 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 50012315 |
| Mode S Code Hex | A014CD |