Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4273.
| Tail Number / N-Number | N4273 |
| Manufacturer | ROSS |
| Model | B-8-M |
| Year Built | 1976 |
| Manufacturer's Serial Number | SF51218 |
| Aircraft Type | Rotorcraft |
| 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 | SALE REPORTED |
| Street | NONE |
| City | OKLA CITY |
| State | OK |
| Zip Code | 73125 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1980-02-15 |
| Last Action Date | 1989-08-02 |
| Last Status | Sale Reported – Pending Cancellation |
| Cancellation Date | 2012-08-08 |
| Mode S Code | 51214141 |
| Mode S Code Hex | A51861 |