| Tail Number / N-Number | N21TU |
| Manufacturer | PILATUS |
| Model | B4-PC11 |
| Year Built | 1974 |
| Manufacturer's Serial Number | 133 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 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 |
| Average Cruising Speed | 45 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | AERO CLUB ALBATROSS |
| Street | 36 LAMBERT RD |
| City | BLAIRSTOWN |
| State | NJ |
| Zip Code | 07825-9307 |
| Region | Eastern |
| County | Warren County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2011-03-28 |
| Certificate Issue Date | 2017-06-14 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-06-30 |
| Status | Valid Registration |
| Mode S Code | 50334345 |
| Mode S Code Hex | A1B8E5 |