| Tail Number / N-Number | N181BU |
| Manufacturer | MORAVAN |
| Model | ZLIN 381 |
| Manufacturer's Serial Number | 461 |
| 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 | HIRTH |
| Engine Model | HM 504 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Type of Registrant | Individual |
| Owner Name | WEEKS KERMIT A |
| Street | 1400 BROADWAY BLVD SE |
| City | POLK CITY |
| State | FL |
| Zip Code | 33868-9109 |
| Region | Southern |
| County | Polk County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1997-12-22 |
| Certificate Issue Date | 1997-12-09 |
| Last Action Date | 2021-11-08 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 50242217 |
| Mode S Code Hex | A1448F |