| Tail Number / N-Number | N621X |
| Manufacturer | AVIONS FAIREY |
| Model | TIPSY NIPPER T-66 |
| Manufacturer's Serial Number | 46 |
| 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 | 67 miles per hour |
| Type of Registrant | Individual |
| Owner Name | KESSLER DAVID K |
| Street | 556 GRANT RD |
| City | MINERAL WELLS |
| State | TX |
| Zip Code | 76067-9212 |
| Region | Southwestern |
| County | Palo Pinto County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1980-07-22 |
| Certificate Issue Date | 2015-06-17 |
| Last Action Date | 2021-03-26 |
| Expiration Date | 2028-06-30 |
| Status | Valid Registration |
| Mode S Code | 52016001 |
| Mode S Code Hex | A81C01 |