| Tail Number / N-Number | N30121 |
| Manufacturer | EAA |
| Model | BIPLANE |
| Year Built | 1968 |
| Manufacturer's Serial Number | 601 |
| Aircraft Type | Fixed wing single engine |
| 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 | LYCOMING |
| Engine Model | 0-235 SERIES |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 115 hp (86 kW) |
| Average Cruising Speed | 112 miles per hour |
| Type of Registrant | Individual |
| Owner Name | JOKERST KENNETH |
| Street | 3026 HIDDEN ACRES CT |
| City | ST LOUIS |
| State | MO |
| Zip Code | 63125 |
| Region | Central |
| County | St. Louis County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1979-06-29 |
| Certificate Issue Date | 1988-06-08 |
| Last Action Date | 2020-05-13 |
| Expiration Date | 2027-09-30 |
| Status | Valid Registration |
| Mode S Code | 50622701 |
| Mode S Code Hex | A325C1 |