Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N66KF.
| Tail Number / N-Number | N66KF |
| Manufacturer | FIEHTNER |
| Model | PITTS S-1S |
| Year Built | 1979 |
| Manufacturer's Serial Number | 112144-KF |
| 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 | I0360 SER A&C |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 200 hp (149 kW) |
| Average Cruising Speed | 105 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SMILEY MICHAEL H |
| Street | 3241 S JOSEPHINE |
| City | DENVER |
| State | CO |
| Zip Code | 80210 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1980-04-29 |
| Certificate Issue Date | 1979-04-09 |
| Last Action Date | 1982-10-02 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-04-30 |
| Mode S Code | 52131307 |
| Mode S Code Hex | A8B2C7 |