| Tail Number / N-Number | N21820 |
| Manufacturer | PIPER |
| Model | J3C-65 |
| Year Built | 1938 |
| Manufacturer's Serial Number | 2612 |
| 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 | C85-8 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 85 hp (63 kW) |
| Average Cruising Speed | 67 miles per hour |
| Type of Registrant | Individual |
| Owner Name | LEMONS MIKE |
| Street | 366 PIPPINPOST DR |
| City | CONWAY |
| State | AR |
| Zip Code | 72034-5525 |
| Region | Southwestern |
| County | Conway County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2014-11-26 |
| Certificate Issue Date | 2011-08-31 |
| Last Action Date | 2020-03-12 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 50354761 |
| Mode S Code Hex | A1D9F1 |