United States Patent
US Patent 6561455: Vertical take-off and landing, aerodynamically…
US 6561455 · granted 2003-05-13
| Patent Number | 6561455 |
|---|---|
| Title | Vertical take-off and landing, aerodynamically self-sustained horizontal flight hybrid aircraft |
| Filed | 2002-06-26 |
| Granted | 2003-05-13 |
| Inventor(s) | Franco Capanna |
| Assignee | Individual |
| CPC Classification | B64C29/02, B64C29/00 |
| Number of Claims | 2 |
Abstract
An vertical take-off and landing (VTOL) and horizontal flight (HF) aircraft has a fuselage with wings providing lift during horizontal flight, a rotor on the nose of the fuselage that is stowable during horizontal flight, a first pair of ducted fan propellers on the wings, a second pair of tiltable ducted fan propellers adjacent to the tail, a hydraulic system powered by the main engine and generating propulsive hydraulic power for the rotor system and the first and second pairs of propellers. A control system for the hydraulic system provides propulsive hydraulic power to the rotor system and to the second pair of propellers during vertical take-off and landing and not to the first pair of propellers during vertical take-off and landing and provides propulsive power to the first and second pairs of propellers during horizontal flight and not to the rotor system during horizontal flight.
Claims Summary
1. A vertical take-off and landing and horizontal flight aircraft, comprising: