| Tail Number / N-Number | N9121E |
| Manufacturer | AERONCA |
| Model | 11AC |
| Year Built | 1946 |
| Manufacturer's Serial Number | 11AC-752 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | C85 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 85 hp (63 kW) |
| Average Cruising Speed | 75 miles per hour |
| Type of Registrant | Individual |
| Owner Name | CUNNINGHAM FRANK D |
| Street | 810 SE 80TH AVE |
| City | OKEECHOBEE |
| State | FL |
| Zip Code | 34974-8145 |
| Region | Southern |
| County | Okeechobee County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1960-04-07 |
| Certificate Issue Date | 2014-10-10 |
| Last Action Date | 2020-06-23 |
| Expiration Date | 2027-10-31 |
| Status | Valid Registration |
| Mode S Code | 53120231 |
| Mode S Code Hex | ACA099 |