| Tail Number / N-Number | N4001 |
| Manufacturer | LOCKHEED |
| Model | 12A |
| Manufacturer's Serial Number | 1280 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | R-985 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 450 hp (336 kW) |
| Total Horsepower | 900 hp (671 kW) |
| Average Cruising Speed | 155 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WALTERS RICHARD L |
| Street | PO BOX 409 |
| City | BOYCE |
| State | VA |
| Zip Code | 22620-0409 |
| Region | Eastern |
| County | Clarke County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Certificate Issue Date | 2021-10-22 |
| Last Action Date | 2021-10-22 |
| Expiration Date | 2028-10-31 |
| Status | Valid Registration |
| Mode S Code | 51127434 |
| Mode S Code Hex | A4AF1C |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4001.
| Tail Number / N-Number | N4001 |
| Manufacturer | HEILMANS GARAGE |
| Model | HEILMANS MONOPLANE |
| 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 | Corporation |
| Owner Name | HEILMANS GARAGE |
| Street | 10 OHIO ST |
| City | KENTON |
| State | OH |
| Zip Code | 43036 |
| Region | Great Lakes |
| County | Clarke County |
| Last Status | Valid Registration |
| Cancellation Date | 1930-03-28 |