| Tail Number / N-Number | N123PG |
| Manufacturer | MOONEY |
| Model | M20C |
| Year Built | 1965 |
| Manufacturer's Serial Number | 3154 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 127 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | FINLAYSON WILLIAM S |
| Other Names |
|
| Street | 1893 LINDAMOOR DR |
| City | ANNAPOLIS |
| State | MD |
| Zip Code | 21401-1057 |
| Region | Eastern |
| County | Anne Arundel County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1965-08-16 |
| Certificate Issue Date | 2009-04-21 |
| Last Action Date | 2022-08-24 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 50060043 |
| Mode S Code Hex | A06023 |