| Tail Number / N-Number | N643R |
| Manufacturer | RAFFENSPARGER |
| Model | BD-4 |
| Year Built | 1978 |
| Manufacturer's Serial Number | 643 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 137 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SHOWERMAN MICHAEL |
| Street | 6709 N EAST ARROWHEAD DR |
| City | URBANA |
| State | IL |
| Zip Code | 61802-9723 |
| Region | Great Lakes |
| County | Champaign County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1980-12-29 |
| Certificate Issue Date | 2006-06-28 |
| Last Action Date | 2020-03-09 |
| Expiration Date | 2027-07-31 |
| Status | Valid Registration |
| Mode S Code | 52070727 |
| Mode S Code Hex | A871D7 |