| Tail Number / N-Number | N7644 |
| Manufacturer | SCHWEIZER |
| Model | SGS 1-34 |
| Year Built | 1970 |
| Manufacturer's Serial Number | 21 |
| 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 | Corporation |
| Owner Name | BLACKHAWK SOARING CLUB INC |
| Street | 317 PINE ST |
| City | MUSCATINE |
| State | IA |
| Zip Code | 52761-3804 |
| Region | Central |
| County | Muscatine County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1970-04-08 |
| Certificate Issue Date | 2011-05-20 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 52451510 |
| Mode S Code Hex | AA5348 |