FLIGHT INSTRUMENT DISPLAYING A VARIABLE ROTATIONAL SPEED OF A MAIN ROTOR OF AN AIRCRAFT

摘要

A flight instrument that displays the rotational speed of a main rotor of a rotary-wing aircraft, with the flight instrument including display means, a first indicator of a setpoint for the rotational speed of the main rotor, a second indicator of the first current value of the rotational speed of the main rotor, and third and fourth indicators of the limit values of the rotational speed. The setpoint for the rotational speed of the main rotor is variable and the first indicator is stationary on the display means, with the second, third and fourth indicators being movable in relation to the first indicator.

主权项

1. A flight instrument intended for a rotary-wing aircraft equipped with at least one main rotor, at least one motor, and at least one set of means for determining atmospheric parameters and flight parameters of the aircraft, including a first current value consisting of a rotational speed of the main rotor, with the flight instrument displaying first information about the rotational speed of the main rotor and including:
display means; at least one set of computation means enabling the determination of a variable setpoint for the rotational speed of the main rotor, along with at least one lower limit and at least one upper limit of the rotational speed of the main rotor; a first indicator of the variable setpoint for the rotational speed of the main rotor; a second indicator of the first current value of the rotational speed of the main rotor; and a third indicator and a fourth indicator, corresponding respectively to at least one lower limit and at least one upper limit of the rotational speed of the main rotor; wherein either the first indicator or the second indicator is represented in a fixed manner on the display means, while the other one of the first indicator and the second indicator is represented movably on the display means, with the third and fourth indicators being represented movably on the display means.