| Tail Number / N-Number | N6404S |
| Manufacturer | GRANTHAM BILLY V JR |
| Model | HOME BUILT GYROPLANE |
| Year Built | 2000 |
| Manufacturer's Serial Number | BVG01 |
| 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 | SUBARU |
| Engine Model | ALL MDLS A/B |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 400 hp (298 kW) |
| Type of Registrant | Individual |
| Owner Name | KENNEDY RICHARD G |
| Street | 319 LOWER RIDGE RD |
| City | CONWAY |
| State | AR |
| Zip Code | 72032-8514 |
| Region | Southwestern |
| County | Faulkner County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2000-10-15 |
| Certificate Issue Date | 2007-04-30 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-06-30 |
| Status | Valid Registration |
| Mode S Code | 52064060 |
| Mode S Code Hex | A86830 |