INDONESIAN LOW SPEED TUNNEL

General
Since 1988, the Aero-Gas dynamics and Vibration laboratory (LAGG) of the Agency for Assessment and Application of Technology (BPPT) operates a low subsonic wind tunnel located at the National Center for Research, Science and Technology (PUSPIPTEK), Serpong, Indonesia.
This so-called Indonesian Low Speed Wind Tunnel (ILST) having test section size of 4x3m2 has been developed within a frame of a bilateral technological cooperation between the governments of Republic Indonesia, represented by BPPT, and the Netherlands, represented by the National Aerospace Laboratory (NLR). The cooperation took place between 1980 and 1995.
About a decade earlier, NLR together with its counterpart from Germany, i.e. the German Aerospace Agency (DLR), made a mutual agreement to disclose their multiyear research results on a new wind tunnel concept, and to launch a joint program in designing, building and operating a modern and large low speed tunnel having the basic test section size of 8x6m2, and to be located at North-Eastern-Polder, the Netherlands. The constructed wind tunnel has been commissioned and calibrated in 1980, and is now widely known as the German-Dutch Wind Tunnel (DNW). Since its first operation phase, the DNW contributes heavily in new developments of various successful wide body aircrafts, such as BOEING 757, 767, 777 or AIRBUS A-340 and A-380.
The cooperation with NLR obviously enabled LAGG to develop the ILST based on design philosophy and ample experiences accumulated during the construction processes of the DNW. The ILST, together with its equipments and instrumentation, which has been commissioned and calibrated in 1987, resembles therefore the scaled design, the precision and complexities of the DNW, and delivers the expected test section flow qualities and quantities, which are best required for new subsonic medium size aircraft developments.
The ILST has proven to be a reliable testing facility and very useful by considering testing experiences, conducted between 1988 and 2004, on aircraft models of the CN235 civil and military versions for domestic as well as international market, N250, N2130 and UAVs, as well as on industrial models such as Ships, Wing in Ground Effect Craft and Long Span Bridges.