| Tail Number / N-Number | N6728K |
| Manufacturer | KENNETH KANNARD |
| Model | ELA 07 COUGAR |
| Year Built | 2018 |
| Manufacturer's Serial Number | 10144220712 |
| Aircraft Type | Gyroplane |
| 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 | ROTAX |
| Engine Model | 912ULS SERIES |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Kit Manufacturer | ELA AVIACION |
| Kit Model | ELA 07 |
| Type of Registrant | Individual |
| Owner Name | KANNARD KENNETH |
| Street | PO BOX 339 |
| City | BIG BEND |
| State | WI |
| Zip Code | 53103-0339 |
| Region | Great Lakes |
| County | Waukesha County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2018-03-24 |
| Certificate Issue Date | 2018-03-12 |
| Last Action Date | 2021-01-19 |
| Expiration Date | 2028-03-31 |
| Status | Valid Registration |
| Mode S Code | 52163240 |
| Mode S Code Hex | A8E6A0 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N6728K.
| Tail Number / N-Number | N6728K |
| Manufacturer | BEECH |
| Model | 76 |
| Manufacturer's Serial Number | ME-327 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Type of Registrant | Corporation |
| Owner Name | GLOBE ARO LTD INC |
| Street | BOX 5775 |
| City | LAKELAND |
| State | FL |
| Zip Code | 33803 |
| Region | Southern |
| County | Waukesha County |
| Certificate Issue Date | 1980-06-11 |
| Last Status | Valid Registration |
| Cancellation Date | 1980-07-07 |
| Exported To | AUSTRALIA |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N6728K.
| Tail Number / N-Number | N6728K |
| Manufacturer | REPUBLIC |
| Model | RC-3 |
| Manufacturer's Serial Number | 1015 |
| Aircraft Type | Fixed wing single engine |
| Category | Amphibian |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 87 miles per hour |
| Type of Registrant | Individual |
| Owner Name | GIBBS W S |
| County | Waukesha County |
| Certificate Issue Date | 1964-04-30 |
| Last Status | Valid Registration |
| Cancellation Date | 1970-06-24 |