ASE is currently under contract to provide a Trisonic Wind Tunnel for the DSO National Laboratories at the site of the National University in Singapore. The project involves relocation of a refurbished wind tunnel from its original US site to Singapore as well as design and supply of a significant amount of new equipment.
The wind tunnel has a 4 ft x 4 ft test section and is a blowdown type, using high pressure air to achieve intermittent runs of about 30 seconds duration. It is called a “Trisonic” wind tunnel because it can operate at subsonic, transonic, and supersonic speeds. It uses a flexible nozzle to generate the desired test speeds. Relocation of the existing facility involves disassembly, transporting, reconditioning, and re-assembly of components having a total weight of 1800 tons. Some individual pieces weigh up to 100 tons. New equipment being furnished includes a complete new compressor system, control and data acquisition system, a captive trajectory system, color schlieren system, and an automatic balance calibration system. This pdf file illustrates many of the wind tunnel features.
The contract was signed in June of 2000, and the original delivery schedule was 30 months. Progress was interrupted for more than one year while ASE, the US Government, and Singapore negotiated the terms of an export license. The export license was issued in August of 2001, and the current schedule calls for completion in December of 2003.
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