| Turbine Exec | |
|---|---|
| Role | Helicopter |
| National origin | United States |
| Manufacturer | Hillberg Helicopters |
| Status | Production completed |
| Number built | At least one |
| Developed from | Rotorway Exec |
The Hillberg Turbine Exec is an American helicopter turbine engine conversion kit for the piston-engined Rotorway Exec. It was designed and produced by Hillberg Helicopters of Fountain Valley, California. Now out of production, when it was available the kit was supplied for installation by amateur aircraft builders.[1]