| Tail Number / N-Number | N4644S |
| Manufacturer | SCHEMPP-HIRTH |
| Model | STANDARD AUSTRIA S |
| Year Built | 1963 |
| Manufacturer's Serial Number | 39 |
| 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 | 60 miles per hour |
| Type of Registrant | Individual |
| Owner Name | BRACY RODNEY E |
| Street | 11805 DAVIS RD |
| City | MIDDLEVILLE |
| State | MI |
| Zip Code | 49333-8654 |
| Region | Great Lakes |
| County | Barry County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1964-01-31 |
| Certificate Issue Date | 2012-06-18 |
| Last Action Date | 2021-03-06 |
| Expiration Date | 2028-06-30 |
| Status | Valid Registration |
| Mode S Code | 51325554 |
| Mode S Code Hex | A5AB6C |