Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N10EK.
| Tail Number / N-Number | N10EK |
| Manufacturer | VAN DER KAAY ERIK K |
| Model | MARCO J5 |
| Manufacturer's Serial Number | 0135 |
| Aircraft Type | Glider |
| 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 | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | VAN DER KAAY ERIK K |
| Street | 1438 LAWNWOOD COURT |
| City | TARPON SPRINGS |
| State | FL |
| Zip Code | 34689 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1990-08-13 |
| Certificate Issue Date | 1990-07-12 |
| Last Action Date | 2008-12-16 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-07-02 |
| Mode S Code | 50001311 |
| Mode S Code Hex | A002C9 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N10EK.
| Tail Number / N-Number | N10EK |
| Manufacturer | VAN DER KAAY ERIK K |
| Model | CASSUTT III M |
| Manufacturer's Serial Number | 8701 |
| 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) |
| Number of Engines | 1 engine |
| Last Status | N-Number Assigned – but has not yet been registered |
| Cancellation Date | 1990-05-17 |
| Mode S Code | 50001311 |
| Mode S Code Hex | A002C9 |