Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N56660.
| Tail Number / N-Number | N56660 |
| Manufacturer | PRATT READ |
| Model | PR-G1 |
| Manufacturer's Serial Number | PRG 01-68 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 0 engines |
| Average Cruising Speed | 74 miles per hour |
| Type of Registrant | Individual |
| Owner Name | KLESSIG CHARLES D |
| Street | GENERAL DELIVERY |
| City | GALESBURG |
| State | ND |
| Zip Code | 58035 |
| Region | Great Lakes |
| Certificate Issue Date | 1969-04-02 |
| Last Status | Valid Registration |
| Cancellation Date | 1981-07-10 |
| Mode S Code | 51640167 |
| Mode S Code Hex | A74077 |