| Tail Number / N-Number | N21728 |
| Manufacturer | DOUGLAS |
| Model | DC3-G202A |
| Year Built | 1939 |
| Manufacturer's Serial Number | 2144 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 32 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Engine Manufacturer | WRIGHT |
| Engine Model | C9GC&D SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 1,200 hp (895 kW) |
| Total Horsepower | 2,400 hp (1,790 kW) |
| Average Cruising Speed | 158 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | PO BOX 25082 |
| City | OKLAHOMA CITY |
| State | OK |
| Zip Code | 73125 |
| Region | Southwestern |
| County | Oklahoma County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Last Action Date | 1977-01-14 |
| Status | Sale reported |
| Mode S Code | 50353102 |
| Mode S Code Hex | A1D642 |