Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N1684.
| Tail Number / N-Number | N1684 |
| Manufacturer | CURTISS |
| Model | JN4D |
| Year Built | 1918 |
| Manufacturer's Serial Number | I-569 |
| 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 | 67 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WHITTEN DELBERT E |
| Street | ROOSEVELT FIELD |
| City | GARDEN CITY |
| State | NY |
| Zip Code | 11530 |
| Region | Eastern |
| Certificate Issue Date | 1927-09-23 |
| Last Status | Valid Registration |
| Cancellation Date | 1930-04-30 |
| Mode S Code | 50211112 |
| Mode S Code Hex | A1124A |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N1684.
| Tail Number / N-Number | N1684 |
| Manufacturer | HOBBYCRAFTER |
| Model | EX-1 |
| Manufacturer's Serial Number | HM-100 |
| Aircraft Type | Rotorcraft |
| 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 |
| Average Cruising Speed | 86 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | P. O. BOX 25082 |
| City | OKLAHOMA CITY |
| State | OK |
| Zip Code | 73125 |
| Country | US |
| Last Action Date | 1977-01-14 |
| Last Status | Sale reported |
| Cancellation Date | 1976-06-02 |
| Mode S Code | 50211112 |
| Mode S Code Hex | A1124A |