ROTARY WING AIRCRAFT HAVING A TAIL ROTOR, AND A METHOD OF OPTIMIZING THE OPERATION OF A TAIL ROTOR
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United States of America Patent
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Issued Date -
Oct 10, 2013
app pub date -
Feb 13, 2013
filing date -
Feb 21, 2012
priority date (Note) -
Abandoned
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Abstract
A rotary wing aircraft (1) provided with a main lift rotor (2), a tail rotor (5), and a power plant (4) driving a main gearbox (3) that co-operates with said main rotor (2), said tail rotor (5) being provided with a plurality of blades (10) of variable pitch (I) and with a pitch modification device (20), and said aircraft (1) having control means (30) for controlling said pitch modification device (20). The aircraft (1) includes an electric motor (9) for rotating said tail rotor (5) and regulator means (TRCU) connected to the control means (30) and also to the electric motor (9) and to the pitch modification device (20). The regulator means (TRCU) generate a first setpoint concerning pitch that is transmitted to the pitch modification device (20), and a second setpoint for controlling a motor parameter that is transmitted to the electric motor (9).
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