| Tail Number / N-Number | N57K |
| Manufacturer | KLEIN |
| Model | PITTS SPECIAL S-1 |
| Year Built | 1979 |
| Manufacturer's Serial Number | 389-H |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 150 hp (112 kW) |
| Average Cruising Speed | 105 miles per hour |
| Type of Registrant | Individual |
| Owner Name | KLEIN ROBERT D |
| Street | 2580 27TH AVE NORTH |
| City | ST PETERSBURG |
| State | FL |
| Zip Code | 33713 |
| Region | Southern |
| County | Pinellas County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1980-01-08 |
| Certificate Issue Date | 1976-04-07 |
| Last Action Date | 2022-08-13 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 51646361 |
| Mode S Code Hex | A74CF1 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N57K.
| Tail Number / N-Number | N57K |
| Manufacturer | LEE ANSON GEORGE |
| Model | WHITMAN TAIL WIND |
| Manufacturer's Serial Number | WK-1 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | WALTER P KAY |
| Street | 1412 BEAUPRE |
| City | MADISON HEIGHTS |
| State | MI |
| Zip Code | 48033 |
| Region | Great Lakes |
| County | Pinellas County |
| Certificate Issue Date | 1962-03-02 |
| Last Status | Valid Registration |
| Cancellation Date | 1971-11-24 |