| Tail Number / N-Number | N261M |
| Manufacturer | WACO |
| Model | BSO |
| Manufacturer's Serial Number | A-159 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | 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 | R680E SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Average Cruising Speed | 79 miles per hour |
| Type of Registrant | LLC |
| Owner Name | OLD STYLE AIRCRAFT LLC |
| Street | RR 1 BOX 251 # 323 |
| City | ELLSINORE |
| State | MO |
| Zip Code | 63937-9726 |
| Region | Central |
| County | Carter County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1977-05-05 |
| Certificate Issue Date | 2014-11-18 |
| Last Action Date | 2020-11-24 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 50501707 |
| Mode S Code Hex | A283C7 |