| Tail Number / N-Number | N654ML |
| Manufacturer | MICHAEL J HENNING |
| Model | RV-4 |
| Manufacturer's Serial Number | 2750 |
| 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 | IO-360-A1A |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 200 hp (149 kW) |
| Kit Manufacturer | VANS AIRCRAFT INC |
| Kit Model | RV-4 |
| Type of Registrant | LLC |
| Owner Name | SMOKING HOLE AVIATION LLC |
| Street | 545 ELM ST UNIT 26 |
| City | MILFORD |
| State | NH |
| Zip Code | 03055-4310 |
| Region | New England |
| County | Hillsborough County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Special Flight Permit |
| Airworthiness Date | 2015-04-14 |
| Certificate Issue Date | 2019-04-09 |
| Last Action Date | 2021-11-21 |
| Expiration Date | 2029-04-30 |
| Status | Valid Registration |
| Mode S Code | 52116264 |
| Mode S Code Hex | A89CB4 |