Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4274.
| Tail Number / N-Number | N4274 |
| Manufacturer | BENSEN |
| Model | B-8M |
| Year Built | 1970 |
| Manufacturer's Serial Number | RMW-1 |
| Aircraft Type | Gyroplane |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Average Cruising Speed | 45 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WILSON ROBERT M |
| Street | 200 HEGE ST |
| City | COLUMBUS |
| State | IN |
| Zip Code | 47201 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1979-07-02 |
| Certificate Issue Date | 1971-04-22 |
| Last Action Date | 2010-11-08 |
| Last Status | Third Notice for Re-Registration/Renewal |
| Cancellation Date | 2013-01-22 |
| Mode S Code | 51214204 |
| Mode S Code Hex | A51884 |