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Denel Saab Aerostructures completes ground tests on Agusta A109 LUH

Date: 27 Aug 2009

The ground tests involved various assessments to ensure that all components required for the aircraft to lift off the ground were in perfect working order. All flight critical systems such as fuel, hydraulic, electrical, failure indication and basic flight control systems were therefore checked for correct functionality. The tests also included a basic communication system check. “During the first minute the engine is running, a basic repeat of flight critical systems checks takes place,” explained Lana Kinley, CEO of DSA, as the engine was started. “These serve to monitor vibrations in the helicopter and ensure that oil, hydraulic and fuel system pressures are kept at optimal level.”

The tests then required the engines to be shut down to confirm that no leakages were present in the oil, hydraulic and fuel systems. After subsequently restarting the engines, blade balancing and vibration adjustments assessments were undertaken while the helicopter hovered for the first time – with constant monitoring of flight critical parameters happening throughout.

The completion of the ground test renders the aircraft ready for in-air testing during which all the mechanical and avionic systems of the helicopter will be validated. The concluding flight test will certify the readiness of all high level avionics systems such as the navigation system and the automatic flight control (auto pilot).

The final delivery of the remaining Agusta A109 LUH is as per a contract awarded to AgustaWestland in 2000 for 30 helicopters – 23 of which were manufactured and assembled in South Africa by DSA. During the nine years it took for the contract to be concluded, engineers from DSA participated (for a three year period) in designing the helicopter changes that were required by the SAAF. DSA additionally established and stabilised the technologies used to manufacture detail sheet metal, mechanical and composite material parts of the aircraft, as well as performing structural and final assembly. The company was also accredited as a supplier of vital dynamic assemblies of helicopter parts for the civilian and military market (i.e. main rotor blades and main rotor heads) and as a supplier of structural assemblies (such as fuselages and tail booms) during this time.

“The production programme for the Agusta A109 LUH was fully integrated into our strategy for skills development and product knowledge. This ensured optimal production flow, focusing on DSA’s core business as a dynamic and structural assemblies producer,” added Kinley.

The successful fulfilment of this contract – in partnership with AgustaWestland – bodes well for DSA’s future in terms of securing similar contracts from other global suppliers. It has also fostered stronger relations with the Italian company, thereby strengthening the South Africa’s position on the international list of aerostructures manufacturers.

Ends.