Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4533M.
| Tail Number / N-Number | N4533M |
| Manufacturer | PIPER |
| Model | PA-11 |
| Year Built | 1948 |
| Manufacturer's Serial Number | 1138 |
| 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 | 67 miles per hour |
| Type of Registrant | Individual |
| Owner Name | NISLEY ROBERT E |
| Street | 626 SHAUN AVE |
| City | CHEYENNE |
| State | WY |
| Zip Code | 82009-3549 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1955-07-27 |
| Certificate Issue Date | 1999-06-18 |
| Last Action Date | 2006-09-08 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2012-12-11 |
| Mode S Code | 51300016 |
| Mode S Code Hex | A5800E |