초록 ▼

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 devi

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).

대표청구항 ▼

[What is claimed is:] [1.]input means (5) for various control parameters of the engine and of the gearbox,calculation means (6) connected to said input means (5) which, on the basis of values of the control parameters and the values of limits for various regimes in which the engine is used, express

[What is claimed is:] [1.]input means (5) for various control parameters of the engine and of the gearbox,calculation means (6) connected to said input means (5) which, on the basis of values of the control parameters and the values of limits for various regimes in which the engine is used, express a collective-pitch value, anddisplay means (4, 8, 9) comprising a power margin scale (8) which is graduated in collective-pitch equivalents and is capable of moving past a collective-pitch index (9) in a window (4) of a display screen (7), said display means further showing on said display screen (7);the value of the collective-pitch, andpitch indications of a first limit for each of the flight regimes, wherein the difference on the power margin scale (8) between the collective-pitch value and the first limit gives a representation of the power margin available to a pilot of the rotary-wing aircraft.