| Tail Number / N-Number | N5K |
| Manufacturer | MICHAEL J HOY |
| Model | MONOSPORT 360 |
| Manufacturer's Serial Number | 001 |
| 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 | ECI |
| Engine Model | IOX-360 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 188 hp (140 kW) |
| Type of Registrant | Individual |
| Owner Name | HOY MICHAEL J |
| Street | PO BOX 2981 |
| City | OSHKOSH |
| State | WI |
| Zip Code | 54903-2981 |
| Region | Great Lakes |
| County | Winnebago County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2018-10-09 |
| Certificate Issue Date | 2020-05-07 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 51433037 |
| Mode S Code Hex | A6361F |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N5K.
| Tail Number / N-Number | N5K |
| Manufacturer | POBEREZNY PAUL H |
| Model | POBER SPEEDSTER |
| Manufacturer's Serial Number | 1 |
| 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 |
| Type of Registrant | Individual |
| Owner Name | POBEREZNY PAUL H |
| Street | 1869 WAUPUN ROAD |
| City | OSHKOSH |
| State | WI |
| Zip Code | 54901 |
| County | Winnebago County |
| Country | US |
| Certificate Issue Date | 1988-08-01 |
| Last Action Date | 1994-12-08 |
| Last Status | Valid Registration |
| Cancellation Date | 1997-07-18 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N5K.
| Tail Number / N-Number | N5K |
| Manufacturer | STITS RAY |
| Model | SA-9A |
| Manufacturer's Serial Number | 9A60101 |
| 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 |
| Average Cruising Speed | 105 miles per hour |
| County | Winnebago County |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1988-07-18 |