| Tail Number / N-Number | N11CZ |
| Manufacturer | YAKOVLEV |
| Model | YAK-11 |
| Manufacturer's Serial Number | 171706 |
| 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 | KALMAR ISTVAN |
| Street | 96396 DAWSON RD |
| City | BROOKINGS |
| State | OR |
| Zip Code | 97415-8114 |
| Region | Northwest Mountain |
| County | Curry County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2015-09-04 |
| Last Action Date | 2021-05-12 |
| Expiration Date | 2028-09-30 |
| Status | Valid Registration |
| Mode S Code | 50025044 |
| Mode S Code Hex | A02A24 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N11CZ.
| Tail Number / N-Number | N11CZ |
| Manufacturer | AEROVODOCHODY |
| Model | L-29 DELFIN |
| Year Built | 1965 |
| Manufacturer's Serial Number | 1635 |
| 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 | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | KALMAR ISTVAN |
| Street | 23890 MADISON ST |
| City | TORRANCE |
| State | CA |
| Zip Code | 90505-6009 |
| County | Curry County |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1994-10-06 |
| Certificate Issue Date | 2013-01-11 |
| Last Action Date | 2013-01-11 |
| Last Status | First Notice for Registration Renewal |
| Cancellation Date | 2015-09-29 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N11CZ.
| Tail Number / N-Number | N11CZ |
| Manufacturer | GRUMMAN |
| Model | G-159 |
| Manufacturer's Serial Number | 59 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 21 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 262 miles per hour |
| County | Curry County |
| Last Status | N-Number Assigned – but has not yet been registered |