| Tail Number / N-Number | N12MX |
| Manufacturer | MONNETT |
| Model | SONERAI II-B |
| Manufacturer's Serial Number | 1-2B |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | VOLKSWAGEN |
| Engine Model | CONVERSION |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 36 hp (27 kW) |
| Average Cruising Speed | 85 miles per hour |
| Type of Registrant | Individual |
| Owner Name | ESKILDSEN G BRUCE |
| Street | 107 AIRPORT WAY N |
| City | MATTAWA |
| State | WA |
| Zip Code | 99349-1978 |
| Region | Northwest Mountain |
| County | Grant County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1987-08-07 |
| Certificate Issue Date | 2005-12-29 |
| Last Action Date | 2021-08-16 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 50051202 |
| Mode S Code Hex | A05282 |