| Tail Number / N-Number | N728HR |
| Manufacturer | BAKER MATTHEW A |
| Model | HARMONROCKET II |
| Year Built | 2009 |
| Manufacturer's Serial Number | 007 |
| 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 | O-540-E4B5 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Type of Registrant | Individual |
| Owner Name | VELASCO HIGAREDA IGNACIO L |
| Street | 24159 DEL MONTE DR UNIT 391 |
| City | VALENCIA |
| State | CA |
| Zip Code | 91355-3866 |
| Region | Western-Pacific |
| County | Los Angeles County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2009-07-02 |
| Certificate Issue Date | 2022-04-19 |
| Last Action Date | 2022-04-19 |
| Expiration Date | 2029-04-30 |
| Status | Valid Registration |
| Mode S Code | 52341003 |
| Mode S Code Hex | A9C203 |