| Tail Number / N-Number | N43C |
| Manufacturer | TALLMAN-PFALZ |
| Model | D-12 |
| Year Built | 1958 |
| 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) |
| Engine Manufacturer | MERCEDES |
| Engine Model | D111A |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 112 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | WINDWARD AVIATION INC |
| Street | 9404 E MARGINAL WAY S |
| City | SEATTLE |
| State | WA |
| Zip Code | 98108-4097 |
| Region | Northwest Mountain |
| County | King County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1965-01-19 |
| Certificate Issue Date | 1982-02-05 |
| Last Action Date | 2022-03-23 |
| Expiration Date | 2029-07-31 |
| Status | Valid Registration |
| Mode S Code | 51220367 |
| Mode S Code Hex | A520F7 |