Services. According to Saab the restructuring was undertaken to become more market and customer oriented. In March 2010, BAE Systems sold half of its 20% stake in the company to Investor AB, which then became the major shareholder. In June 2011, the British company sold its remaining stake bringing its 16-year involvement in Saab to an end. As of August 2020, Investor AB owns a 30.16% stake in the company (39.69% of the voting rights) and is the top owner. Aircraft production The main focus of aircraft production is fighter aircraft. Saab has been making aircraft since the 1930s, and the jet predecessors of the JAS 39 Gripen were the Tunnan, the Lansen, the Draken and the Viggen. The last civilian models made by Saab were the Saab 340 and Saab 2000. Both were mid-range turboprop-powered airliners. The development and the manufacturing of these aircraft is undertaken in Linköping. In May 2019, Saab announced plans to locate a new U.S. manufacturing operation in Discovery Park District Aerospace on the west side of the Purdue University campus. The facility will do the final assembly of the T-X advanced jet trainer, which is a plane developed by Boeing and Saab for the United States Air Force. Organization Aeronautics Aeronautics offers airborne systems, related subsystems, Unmanned Aerial Systems (UAS) and aerostructures. The business area Aeronautics is responsible for airframe structures for JAS 39 Gripen, and whole sections for Airbus, Boeing and NH90; & system development of the JAS 39 Gripen and the Skeldar VTOL UAV. Aeronautics is also partner in the European joint UAV-project Dassault nEUROn, where Saab develop Avionics and is responsible for the overall architecture and design. Marketing and support of the JAS 39 Gripen fighter jet is also included in the Aeronautics business area. Dynamics Dynamics offers ground combat weapons, missile systems, torpedoes, sensor systems, unmanned underwater vehicles such as Sabertooth and signature management systems, remotely operated vehicles for armed forces as well as civil security applications. Short range weapons offered include Carl-Gustaf, AT4/AT4 CS, STRIX and NLAW. Missile systems offered are RBS 70, RBS 23 and RBS 15. Surveillance Surveillance offers airborne surveillance solutions (including GlobalEye, Saab 2000 Erieye) AEW&C and fighter radar, ground-based and naval radar (including the Giraffe radar range), electronic warfare (including IDAS and ESTL) and combat systems and C4I solutions. Industrial Products and Services Industrial Products and Services was established on 1 January 2015 and