Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N33CK.
| Tail Number / N-Number | N33CK |
| Manufacturer | KOONCE |
| Model | CLAYTON SPECIAL |
| Year Built | 1971 |
| Manufacturer's Serial Number | 123 |
| 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) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | A&C65 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 65 hp (48 kW) |
| Average Cruising Speed | 67 miles per hour |
| Type of Registrant | Individual |
| Owner Name | KOONCE CLAYTON F |
| Street | 606 BAKER ST |
| City | KNOXVILLE |
| State | IA |
| Zip Code | 50138 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1985-04-05 |
| Certificate Issue Date | 1982-12-08 |
| Last Action Date | 2007-04-05 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2018-01-18 |
| Mode S Code | 50711662 |
| Mode S Code Hex | A393B2 |