Automatic dual rotor speed control for helicopters
US9235217B2 · kind B2 · utility
5Cited by
18References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2006 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Nov 29, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/57
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A flight control system for a helicopter having a main rotor and a tail rotor is provided. The flight control system includes an automatic rotor speed control being configured to transition the main rotor and the tail rotor between a high speed and a low speed based upon a plurality of received information without requiring any pilot action, the plurality of received information comprising height above ground level, knot indicated air speed, outside air temperature, barometric altitude, pressure altitude, density altitude, and an engine operational status.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.