| Tail Number / N-Number | N84RK |
| Manufacturer | KORNGOLD RALPH D |
| Model | WITTMAN TAILWIND W-8 |
| Year Built | 1984 |
| Manufacturer's Serial Number | 315 |
| 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 | 0-290 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 140 hp (104 kW) |
| Type of Registrant | Individual |
| Owner Name | JOHNSON DOUGLAS L |
| Street | 115 NORTHRIDGE DR |
| City | GRASS VALLEY |
| State | CA |
| Zip Code | 95945-9703 |
| Region | Western-Pacific |
| County | Nevada County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1985-03-22 |
| Certificate Issue Date | 1994-03-07 |
| Last Action Date | 2022-05-25 |
| Expiration Date | 2029-10-31 |
| Status | Valid Registration |
| Mode S Code | 52677401 |
| Mode S Code Hex | AB7F01 |