| Tail Number / N-Number | N50UP |
| Manufacturer | SCOTTISH AVIATION |
| Model | BULLDOG MDL 120/121 |
| Year Built | 1975 |
| Manufacturer's Serial Number | BH120/328 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-360-A1B6 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 200 hp (149 kW) |
| Type of Registrant | Individual |
| Owner Name | STEFANICK RICHARD L |
| Street | 4430 FAIRMONT RD |
| City | MORGANTOWN |
| State | WV |
| Zip Code | 26501-9769 |
| Region | Eastern |
| County | Monongalia County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2017-10-19 |
| Certificate Issue Date | 2010-03-25 |
| Last Action Date | 2022-07-12 |
| Expiration Date | 2029-12-31 |
| Status | Valid Registration |
| Mode S Code | 51434547 |
| Mode S Code Hex | A63967 |