| Tail Number / N-Number | N781US |
| Manufacturer | DON W SANDELL |
| Model | AUTOGYRO GMBH CALIDU |
| Year Built | 2016 |
| Manufacturer's Serial Number | C00436 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROTAX |
| Engine Model | 912ULS SERIES |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Kit Manufacturer | AUTOGYRO GMBH |
| Kit Model | CALIDUS |
| Type of Registrant | Individual |
| Owner Name | SANDELL DON W |
| Street | 2222 310TH ST |
| City | FORT DODGE |
| State | IA |
| Zip Code | 50501-8698 |
| Region | Central |
| County | Webster County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2016-09-30 |
| Certificate Issue Date | 2016-08-08 |
| Last Action Date | 2022-03-18 |
| Expiration Date | 2029-08-31 |
| Status | Valid Registration |
| Mode S Code | 52513020 |
| Mode S Code Hex | AA9610 |