| Tail Number / N-Number | N551 |
| Manufacturer | MEYERS |
| Model | MAC-145 |
| Year Built | 1954 |
| Manufacturer's Serial Number | 216 |
| 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 | IO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Average Cruising Speed | 116 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | HISTORIC AIRCRAFT RESTORATION MUSEUM |
| Street | 14301 CREVE COEUR AIRPORT RD |
| City | SAINT LOUIS |
| State | MO |
| Zip Code | 63146 |
| Region | Central |
| County | St. Louis city |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1981-09-08 |
| Certificate Issue Date | 2015-01-21 |
| Last Action Date | 2020-08-17 |
| Expiration Date | 2028-01-31 |
| Status | Valid Registration |
| Mode S Code | 51601441 |
| Mode S Code Hex | A70321 |