Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4940X.
| Tail Number / N-Number | N4940X |
| Manufacturer | ROCKWELL INTERNATIONAL |
| Model | S-2R |
| Year Built | 1975 |
| Manufacturer's Serial Number | 5001R |
| Aircraft Type | Fixed wing single engine |
| 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 | WRIGHT |
| Engine Model | C7BA SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 800 hp (597 kW) |
| Average Cruising Speed | 82 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | RIDDELL FLYING SERVICE INC |
| Street | PO BOX 2482 |
| City | WEST HELENA |
| State | AR |
| Zip Code | 72390-0482 |
| Country | US |
| Airworthiness Classification | Restricted |
| Last Action Date | 1979-01-06 |
| Last Status | Expired Dealer |
| Cancellation Date | 2011-01-03 |
| Mode S Code | 51420542 |
| Mode S Code Hex | A62162 |