Power margin indicator for a rotary-wing aircraft, especially a helicopter
US6195598A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1997 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Nov 25, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D7/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A power margin indicator for a rotary-wing aircraft, intended to give information on the power margin available on at least one engine and one gearbox of the aircraft. The indicator includes: (a) input unit (5) for the various control parameters of the engine and of the gearbox, (b) calculation device (6) connected to the input unit (5) which, on the basis of the parameters, formulate the power margin, expressed as a collective-pitch value, and (c) display units (4, 8, 9) showing, on a display screen (7), the power margins represented on a scale (8) which is graduated in collective-pitch equivalents, capable of moving past a pitch index (9) in a window (4) of the screen (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.