| Tail Number / N-Number | N300Y |
| Manufacturer | SCHEMPP-HIRTH |
| Model | VENTUS B/16.6 |
| Year Built | 1986 |
| Manufacturer's Serial Number | 300 |
| 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 | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Type of Registrant | Individual |
| Owner Name | COAN STEPHEN S |
| Street | 304 MORRIS LOOP |
| City | ST JOHNS |
| State | FL |
| Zip Code | 32259-8872 |
| Region | Southern |
| County | Duval County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1986-07-10 |
| Certificate Issue Date | 2021-08-21 |
| Last Action Date | 2021-08-21 |
| Expiration Date | 2028-08-31 |
| Status | Valid Registration |
| Mode S Code | 50620570 |
| Mode S Code Hex | A32178 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N300Y.
| Tail Number / N-Number | N300Y |
| Manufacturer | SIKORSKY |
| Model | S-61L |
| Year Built | 1960 |
| Manufacturer's Serial Number | 61031 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 28 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 109 miles per hour |
| Type of Registrant | Corporation |
| County | Duval County |
| Certificate Issue Date | 1962-02-09 |
| Last Status | Valid Registration |
| Cancellation Date | 1970-06-29 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N300Y.
| Tail Number / N-Number | N300Y |
| Manufacturer | AERONCA |
| Model | C-3 |
| Manufacturer's Serial Number | C3-3 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | 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 | 63 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | AERONAUTICAL CORP OF AMERICA |
| Street | LUNKEN AIRPORT |
| City | CINCINNATI |
| State | OH |
| Zip Code | 43036 |
| Region | Great Lakes |
| County | Duval County |
| Last Status | Valid Registration |
| Cancellation Date | 1931-04-02 |