| Tail Number / N-Number | N9021Q |
| Manufacturer | CASTRO ANTONIO J |
| Model | BENSEN B-8M |
| Year Built | 1982 |
| Manufacturer's Serial Number | 1 |
| 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 | MCCULLOCH |
| Engine Model | 4318A&E/0-100 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 72 hp (54 kW) |
| Type of Registrant | Individual |
| Owner Name | CASTRO ANTONIO J |
| Street | 2376 SELMAN DR |
| City | DULUTH |
| State | GA |
| Zip Code | 30096-4330 |
| Region | Southern |
| County | Gwinnett County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1983-07-13 |
| Certificate Issue Date | 1981-08-18 |
| Last Action Date | 2020-10-22 |
| Expiration Date | 2028-02-29 |
| Status | Valid Registration |
| Mode S Code | 53074444 |
| Mode S Code Hex | AC7924 |