| Tail Number / N-Number | N1021 |
| Manufacturer | AERO COMMANDER |
| Model | 685 |
| Year Built | 1972 |
| Manufacturer's Serial Number | 12016 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 9 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | GTSIO-520-C |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 340 hp (254 kW) |
| Total Horsepower | 680 hp (507 kW) |
| Average Cruising Speed | 101 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | N1021 INC |
| Street | 3511 SILVERSIDE RD STE 105 |
| City | WILMINGTON |
| State | DE |
| Zip Code | 19810-4902 |
| Region | Eastern |
| County | New Castle County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1972-11-30 |
| Certificate Issue Date | 2014-04-28 |
| Last Action Date | 2022-12-15 |
| Expiration Date | 2030-04-30 |
| Status | Valid Registration |
| Mode S Code | 50007235 |
| Mode S Code Hex | A00E9D |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N1021.
| Tail Number / N-Number | N1021 |
| Manufacturer | PORTER LEWIS B JR |
| Model | RV6 |
| Year Built | 1996 |
| Manufacturer's Serial Number | 20036 |
| 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) |
| Engine Manufacturer | LYCOMING |
| Engine Model | O-320-D2J |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 160 hp (119 kW) |
| Type of Registrant | Individual |
| Owner Name | KOESTER DAVID P |
| Street | 4240 HILYARD ST |
| City | EUGENE |
| State | OR |
| Zip Code | 97405-3907 |
| County | New Castle County |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2004-02-06 |
| Certificate Issue Date | 2007-03-30 |
| Last Action Date | 2007-03-30 |
| Last Status | Valid Registration |
| Cancellation Date | 2008-04-08 |
| Exported To | UNITED KINGDOM |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N1021.
| Tail Number / N-Number | N1021 |
| Manufacturer | SMITH |
| Model | DSA-1 |
| Year Built | 1966 |
| 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 |
| Average Cruising Speed | 86 miles per hour |
| Type of Registrant | Individual |
| Owner Name | STUBEN CHARLES G |
| Street | 617 NO IMPERIAL |
| City | BRAWLEY |
| State | CA |
| Zip Code | 92227 |
| Region | Western-Pacific |
| County | New Castle County |
| Certificate Issue Date | 1966-03-28 |
| Last Status | Valid Registration |
| Cancellation Date | 1970-11-10 |