초록 ▼

An improved flight director go-around mode adjusts the collective stick position in a closed loop to increase lift to a desired value. If the engagement airspeed is below the maximum rate of climb airspeed, the airspeed is increased towards the maximum rate of climb airspeed at a moderate rate. When

An improved flight director go-around mode adjusts the collective stick position in a closed loop to increase lift to a desired value. If the engagement airspeed is below the maximum rate of climb airspeed, the airspeed is increased towards the maximum rate of climb airspeed at a moderate rate. When the maximum rate of climb airspeed is attained, or if the engagement airspeed is at least the maximum rate of climb airspeed, and the rate of climb is satisfactory, the airspeed is maintained. If the engagement airspeed is greater than the maximum rate of climb airspeed and the desired rate of climb is not achieved within ten seconds, the airspeed is decreased towards the maximum rate of climb airspeed. Heading or course is automatically maintained when go-around is engaged.

대표청구항 ▼

A flight director having a channel for controlling the lift (climb/descent) of an aircraft in response to a collective command and having a channel for controlling the airspeed of the aircraft in response to a pitch command, comprising: a switch for providing a go-around signal in response to a pilo

A flight director having a channel for controlling the lift (climb/descent) of an aircraft in response to a collective command and having a channel for controlling the airspeed of the aircraft in response to a pitch command, comprising: a switch for providing a go-around signal in response to a pilot input; altitude means for providing a rate signal indicative of the aircraft vertical rate; airspeed means for providing an airspeed signal indicative of the aircraft airspeed; and signal processing means connected for response to the switch, the altitude means and the airspeed means, for providing the collective command in response to the go-around signal to cause the aircraft to climb at a predetermined rate as indicated by the rate signal, for providing the pitch command to increase the airspeed of the aircraft in response to the go-around signal when the airspeed signal is indicative of an airspeed that is less than a predetermined airspeed, such as the maximum rate of climb airspeed of the aircraft, and for providing the pitch command to decrease the airspeed in response to the go-around signal only when the airspeed signal is indicative of an airspeed that is greater than the predetermined airspeed and if the predetermined rate of climb is not achieved within a predetermined time interval after go-around was commanded by the pilot.