Ultra Electronics To Quiet A400M Transport ᲀ
Ultra Electronics Controls (Stand A544) has been selected by Airbus to supply active noise and vibration control on the A400M military transport aircraft.

Ultra Electronics Controls (Stand A544) has been selected by Airbus to supply active noise and vibration control on the A400M military transport aircraft. The contract is valued at approximately $60 million, the UK-based company said here.

Ultra’s tuned vibration absorber system (TVAS) is based on active vibration controllers attached to the fuselage, which provide a local reduction of the vibration. A central electronic controller coordinates the operation of all the devices to reduce the noise from the four massive propellers. Some 800 turboprop aircraft are already flying with Ultra technology.