| Tail Number / N-Number | N683U |
| Manufacturer | SCHWEIZER |
| Model | SGS 1-26B |
| Year Built | 1965 |
| Manufacturer's Serial Number | 304 |
| 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 | PTACEK STEPHEN R |
| Street | 2934 ASPEN DR |
| City | ESTES PARK |
| State | CO |
| Zip Code | 80517-7001 |
| Region | Northwest Mountain |
| County | Larimer County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1965-05-24 |
| Certificate Issue Date | 2011-10-05 |
| Last Action Date | 2020-09-15 |
| Expiration Date | 2027-10-31 |
| Status | Valid Registration |
| Mode S Code | 52210036 |
| Mode S Code Hex | A9101E |