| Tail Number / N-Number | N6RB |
| Manufacturer | BUSH |
| Model | BIPLANE WILLIE II |
| Year Built | 1977 |
| Manufacturer's Serial Number | 0015 |
| 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 | I0360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 85 miles per hour |
| Type of Registrant | Individual |
| Owner Name | BUSH ROBERT |
| Street | 1647 KAUFFMAN RD |
| City | LANDISVILLE |
| State | PA |
| Zip Code | 17538-1418 |
| Region | Eastern |
| County | Lancaster County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1982-06-08 |
| Certificate Issue Date | 1974-09-06 |
| Last Action Date | 2021-05-23 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 51742006 |
| Mode S Code Hex | A7C406 |