| Tail Number / N-Number | N420HC |
| Manufacturer | MILLER DENNIS J |
| Model | SONEX |
| Manufacturer's Serial Number | 0420 |
| 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) |
| Number of Engines | 1 engine |
| Kit Manufacturer | SONEX LTD |
| Kit Model | SONEX |
| Type of Registrant | Individual |
| Owner Name | MILLER DENNIS J |
| Street | 5445 NICKELS DR |
| City | OSHKOSH |
| State | WI |
| Zip Code | 54904-9530 |
| Region | Great Lakes |
| County | Winnebago County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2019-04-03 |
| Last Action Date | 2021-11-16 |
| Expiration Date | 2029-04-30 |
| Status | Valid Registration |
| Mode S Code | 51176121 |
| Mode S Code Hex | A4FC51 |