| Tail Number / N-Number | N21D |
| Manufacturer | SMITH |
| Model | AEROSTAR 601P |
| Year Built | 1975 |
| Manufacturer's Serial Number | 61P-0205-018 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-540 SER |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 300 hp (224 kW) |
| Total Horsepower | 600 hp (448 kW) |
| Average Cruising Speed | 144 miles per hour |
| Type of Registrant | LLC |
| Owner Name | QWERT1 LLC |
| Street | 2631 TRISTINS GROVE |
| City | COLORADO SPRINGS |
| State | CO |
| Zip Code | 80906 |
| Region | Northwest Mountain |
| County | El Paso County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1990-07-03 |
| Certificate Issue Date | 2019-07-23 |
| Last Action Date | 2022-06-13 |
| Expiration Date | 2029-07-31 |
| Status | Valid Registration |
| Mode S Code | 50333564 |
| Mode S Code Hex | A1B774 |