I want to respond Ananda from other forum. As usual he always down play Indonesian contribution in every project. This is the relation between Indonesia and Turkish MALE Anka.
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2008-2018, A Decade of Cooperation Between Indonesia and Turkey in Testing Wind Tunnels for the Development of Unmanned Aerial Vehicles (UAVs)
Administrator
19 Oct 2018
Defense, Transportation & Manufacturing Technology
The collaboration between BBTA3 (Balai Besar Aerodynamics, Aeroelastika and Aeroacoustics) BPPT and Turkish Aerospace has been started since 2008 when the first campaign of wind tunnel testing was carried out at the ILST (Indonesian Low Speed Tunnel) for ANKA, an unmanned aircraft of the MALE class (Medium Altitude Long). Endurance) belongs to Turkish Aerospace.
During the visit, Ozmen said that Turkish Aerospace highly appreciated the contribution of BPPT through BBTA3 in the development of its Unmanned Air System. Ozmen said that since 2008 BBTA3 and Turkish Aerospace have collaborated on five wind tunnel testing campaigns for unmanned aircraft.
The first wind tunnel testing campaign was conducted on the ANKA model with
full configuration and 2D wing model. This testing campaign is aimed at obtaining the aerodynamic characteristics of the first variant. This testing campaign was conducted for eight months from March to November 2008. The large amount of data collected during this test plays a very important role both for the development of software for the autopilot control system, as well as for verifying flight performance prior to its maiden flight.
A second test campaign was conducted at ILST in April-May 2015 for other ANKA variants including the SATCOM variant. Tests on the scaled model in this campaign were carried out to obtain the effects of wing deformation, installation of communication equipment such as:
SAR and SATCOM radomes ,
EO/IR cameras ,
winglets and
air inlets on the aerodynamic characteristics of ANKA.
The third wind tunnel testing campaign at ILST was conducted on the ANKA-NG (Next Generation) wing at full scale in June 2015. Aerodynamic hinge moment data for the 2D wing was obtained for various trailing edge deflections. This data is very important in the development of a deicing system or the anticipation of contamination on the wing surface during the operating cycle.
A fourth wind tunnel testing campaign was conducted for ANK-NG at ILST BBTA3 in a scalable model. In this test, the effect of the new wing geometry on aerodynamic forces and moments was studied as many as 60 valid polar data.
"The four ANKA wind tunnel testing campaigns at ILST have contributed greatly to the development of the ANKA UAV System with superior flight performance and enhanced safety features," said Tamer Ozmen, Turkish Aerospace Vice President for Corporate Marketing and Communications during his visit last October 11. to BBTA3 BPPT.
Ozmen said that currently ANKA is a MALE class UAV that is
combat proven for Intelligence, Reconnaissance, Surveillance and Strike Systems for both domestic security and maritime reconnaissance operations. ANKA is now ready for the required military missions with various payload configurations.
Currently Turkish Aerospace is continuing its collaboration with BBTA3 for the fifth time in wind tunnel testing of a new UAV System for High Payload Capacity.
This fifth test campaign is aimed at obtaining the aerodynamic characteristics of their new aircraft model, the YFYK, which is scalable in full configuration. This test campaign started in September 2018 and is planned to acquire 233 polar aerodynamic data including for various control plane deflections and various payloads configurations by the end of October 2018.
Ozmen added that Turkish Aerospace is very grateful for BPPT's contribution through BBTA3 in the successful development of the Turkish Aerospace UAV product line, he hopes this collaboration will continue for the future.
On the occasion, Head of the Center for Aerodynamics, Aeroelastics and Aeroacoustics Technology (BBTA3), Agency for the Assessment and Application of Technology (BPPT), Fadilah Hasim acknowledged that the collaboration with Turkish Aerospace in UAV aerodynamic testing was very beneficial.
Fadilah said that in 2008 when BBTA3 BPPT (formerly LAGG) started the ANKA UAV development cooperation with Turkish Aerospace, unmanned aircraft technology was just beginning to develop.
"ANKA's wind tunnel testing campaign provides an opportunity to gain experience studying small UAV aircraft or aircraft with low Reynolds numbers," said Fadilah.
According to Fadilah, the aerodynamic database for the low Reynolds number is still relatively limited compared to the database for the high Reynolds number, which is commonly owned by large aircraft, which has been found in many books and literature.
"But planes with small wings that are very sensitive to even small disturbances, there are still not many databases. We have the opportunity to study it," he added.
Fadilah explained that the aircraft model testing facility at BBTA3 BPPT, namely ILST (Indonesian Low Speed Tunnel) is a wind tunnel with a test section measuring 4 m × 3 m which was built by President BJ Habibie using technology from Germany and the Netherlands.
"Our wind tunnel is very precise with a very low turbulence intensity below 0.1 percent, a very thin boundary layer below 5 percent, and a very uniform flow angle," said Fadilah.
"The ILST wind tunnel is a world-class wind tunnel, and we always do our best to maintain it properly," he continued. (BBTA3 BPPT/Humas/HMP)
Vice President Turkish Aerospace for Corporate Marketing and Communication, Tamer Özmen, dan Executive Vice President for Unmanned Air System, Omer Yil...
www.bppt.go.id
We can see Anka in Indonesian wind tunnel
This is from TAI official being published by their state owned publication
Kerja sama dimulai pada saat pengembangan program pesawat terbang tanpa awak (unmanned aircraft vehicle/UAV) ANKA tahun 2008 - Anadolu Ajansı
www.aa.com.tr