| Tail Number / N-Number | N3981X |
| Manufacturer | PORTZER GILES R |
| Model | ONEX |
| Year Built | 2014 |
| Manufacturer's Serial Number | 098 |
| 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 | REVMASTER |
| Engine Model | 2300 |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 85 hp (63 kW) |
| Kit Manufacturer | SONEX AIRCRAFT LLC |
| Kit Model | ONEX |
| Type of Registrant | Individual |
| Owner Name | PORTZER GILES R |
| Street | 133 HARDIN RD |
| City | JASPER |
| State | AL |
| Zip Code | 35504-5824 |
| Region | Southern |
| County | Walker County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2014-02-22 |
| Certificate Issue Date | 2013-09-25 |
| Last Action Date | 2022-08-01 |
| Expiration Date | 2029-09-30 |
| Status | Valid Registration |
| Mode S Code | 51121422 |
| Mode S Code Hex | A4A312 |