| Tail Number / N-Number | N4577A |
| Manufacturer | PIPER |
| Model | PA-18 |
| Year Built | 1956 |
| Manufacturer's Serial Number | 18-4883 |
| 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 | C90 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 95 hp (71 kW) |
| Average Cruising Speed | 97 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | THOMPSON DENNIS E JR |
| Other Names |
|
| Street | 11001 ELMORE ST |
| City | ANCHORAGE |
| State | AK |
| Zip Code | 99516 |
| Region | Alaskan |
| County | Anchorage Municipality |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-03-16 |
| Certificate Issue Date | 1977-06-13 |
| Last Action Date | 2020-03-24 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 51307553 |
| Mode S Code Hex | A58F6B |