| Tail Number / N-Number | N540BJ |
| Manufacturer | JANZEN JAMES |
| Model | HARMON ROCKET II |
| Year Built | 2000 |
| Manufacturer's Serial Number | 150 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-540 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Kit Manufacturer | HARMON ROCKET LLC |
| Kit Model | HARMON ROCKET II |
| Type of Registrant | Individual |
| Owner Name | GREENE CHARLES A |
| Street | 9387 OAK CREEK DR |
| City | PILOT POINT |
| State | TX |
| Zip Code | 76258-6228 |
| Region | Southwestern |
| County | Denton County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2000-08-25 |
| Certificate Issue Date | 2021-06-15 |
| Last Action Date | 2021-06-15 |
| Expiration Date | 2028-06-30 |
| Status | Valid Registration |
| Mode S Code | 51554016 |
| Mode S Code Hex | A6D80E |