| Tail Number / N-Number | N525DK |
| Manufacturer | AYRES CORPORATION |
| Model | S2R-R1340 |
| Year Built | 1990 |
| Manufacturer's Serial Number | R1340-026 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | R1340 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 600 hp (448 kW) |
| Type of Registrant | Corporation |
| Owner Name | AIR KRAFT SPRAYING INC |
| Street | PO BOX 71 |
| City | TIMBER LAKE |
| State | SD |
| Zip Code | 57656-0071 |
| Region | Great Lakes |
| County | Dewey County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1990-09-07 |
| Certificate Issue Date | 2017-02-07 |
| Last Action Date | 2022-09-20 |
| Expiration Date | 2030-02-28 |
| Status | Valid Registration |
| Mode S Code | 51515726 |
| Mode S Code Hex | A69BD6 |