| Tail Number / N-Number | N357WM |
| Manufacturer | BEECH |
| Model | D-45 |
| Year Built | 1960 |
| Manufacturer's Serial Number | BG-357 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | O-470 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 230 hp (172 kW) |
| Average Cruising Speed | 141 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | MENTOR PARTNERS INC |
| Street | 3216 HAZLETT RD |
| City | SPRINGFIELD |
| State | IL |
| Zip Code | 62707-2610 |
| Region | Great Lakes |
| County | Sangamon County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1960-12-19 |
| Certificate Issue Date | 2019-05-21 |
| Last Action Date | 2021-12-16 |
| Expiration Date | 2029-05-31 |
| Status | Valid Registration |
| Mode S Code | 51000316 |
| Mode S Code Hex | A400CE |