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Aerodynamic Improvements Boost Performance Of AW609 TiltRotor

Helicopter maker AgustaWestland, is flight testing a number of aerodynamic improvements that will boost the performance of its AW609 Til...


Helicopter maker AgustaWestland, is flight testing a number of aerodynamic improvements that will boost the performance of its AW609 TiltRotor prototype.

On the 25th July 2013 AgustaWestland undertook the first flight of a modified vertical tail fin on AW609 TiltRotor prototype #2 at its Cascina Costa flight test facility in Italy. The modified vertical fin is one part of a extensive package of product improvements which also include a new, more aerodynamic,design for the engine exhaust nozzles and changes to the prop-rotor spinner cones.

Together, these modifications reduce the drag factor of the AW609 TiltRotor by approximately ten percent, as well as delivering a significant weight reduction, with a resulting performance increase.

An upgraded version of the Pratt & Whitney Canada PT6 turboshaft engine is being used on the AW609 TiltRotor and will include the latest in technological developments, providing the aircraft with increased performance capabilities as well as the latest safety enhancements.

Rockwell Collins is supplying a fully integrated cockpit for the AW609 TiltRotor based on its Pro Line Fusion system, allowing AW to adopt the very latest in commercial aircraft cockpit technologies, including 14 inch (35.5 cm) touch screen displays, integrated flight management systems with satellite based navigation, synthetic and enhanced vision systems and Head-Up-Display interfaces; all of which will be integrated with the aircraft’s own avionics management systems.

This cockpit suite will provide the crew with increased situational awareness and will reduce pilot workload.

BAE Systems is providing an upgraded Flight Control Computer at the heart of the AW609 TiltRotor’s triple redundant fully digital fly-by-wire flight control system. The computer will include not only the AW control laws and flight control software but also the digital engine control system.
These modifications are an integral part of the overall AW609 TiltRotor programme re-baselining aimed at reducing customer acquisition and operating costs, coupled with delivering performance and technology improvements.

The AgustaWestland US subsidiary, AgustaWestland Tilt-Rotor Company, based in Arlington, Texas, is the Type applicant for the AW609 TiltRotor supported by an Integrated Development Team, based both in Arlington and in Cascina Costa, Italy.

The first prototype is continuing with envelope expansion activities in the US whilst the second prototype is flying from Cascina Costa, with nearly 800 flying hours completed on these aircraft . A further two prototypes are under final assembly in Italy.