Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N3659F.
| Tail Number / N-Number | N3659F |
| Manufacturer | SIKORSKY |
| Model | R-6A |
| Manufacturer's Serial Number | 43-45456 |
| Aircraft Type | Rotorcraft |
| Category | Amphibian |
| Builder Certification | Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 75 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | OKLAHOMA STATE UNIVERSITY |
| Street | GENERAL DELIVERY |
| City | STILLWATER |
| State | OK |
| Zip Code | 73159 |
| Region | Southwestern |
| Certificate Issue Date | 1960-06-01 |
| Last Status | Valid Registration |
| Cancellation Date | 1963-12-11 |
| Mode S Code | 51021170 |
| Mode S Code Hex | A42278 |