| Tail Number / N-Number | N128MW |
| Manufacturer | CONSOLIDATED VULTEE |
| Model | BT-15 |
| Year Built | 1942 |
| Manufacturer's Serial Number | 6475 |
| 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 | WRIGHT |
| Engine Model | 975E&F-2&3 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 475 hp (354 kW) |
| Average Cruising Speed | 108 miles per hour |
| Type of Registrant | Partnership |
| Owner Name | BRYANS MACHINE SHOP LLP |
| Street | PO BOX 1048 |
| City | BIG TIMBER |
| State | MT |
| Zip Code | 59011-1048 |
| Region | Northwest Mountain |
| County | Sweet Grass County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1969-05-01 |
| Certificate Issue Date | 2007-01-12 |
| Last Action Date | 2021-11-23 |
| Expiration Date | 2029-04-30 |
| Status | Valid Registration |
| Mode S Code | 50071222 |
| Mode S Code Hex | A07292 |