Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4925E.
| Tail Number / N-Number | N4925E |
| Manufacturer | SIKORSKY |
| Model | S-51 |
| Year Built | 1946 |
| Manufacturer's Serial Number | 232 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | R-985 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 450 hp (336 kW) |
| Average Cruising Speed | 77 miles per hour |
| Type of Registrant | Individual |
| Owner Name | HYDE CHARLES G |
| Street | 1420 BELEW |
| City | IRVING |
| State | TX |
| Zip Code | 75061 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1979-06-20 |
| Certificate Issue Date | 1981-09-03 |
| Last Action Date | 1984-09-15 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-03-18 |
| Mode S Code | 51415222 |
| Mode S Code Hex | A61A92 |