| Tail Number / N-Number | N123DX |
| Manufacturer | BOYLAN ROBERT A |
| Model | LANCAIR 235 |
| Year Built | 1991 |
| Manufacturer's Serial Number | 123 |
| 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 | 0-290 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 140 hp (104 kW) |
| Type of Registrant | Individual |
| Owner Name | BOYLAN ROBERT A |
| Street | PO BOX 1139 |
| City | LUCERNE |
| State | CA |
| Zip Code | 95458-1139 |
| Region | Western-Pacific |
| County | Lake County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1991-09-22 |
| Certificate Issue Date | 1989-05-10 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-04-30 |
| Status | Valid Registration |
| Mode S Code | 50057470 |
| Mode S Code Hex | A05F38 |