sentences:  In 1974 it joined in a joint venture with French aircraft manufacturers Dassault-Breguet to develop the Alpha Jet.In 1983, Hindustan Aeronautics Limited (HAL) bought a production licence for the Dornier Do 228 and manufactured the aircraft for the Asian market sphere.By 2013 a total of 117 Dornier DO-228 aircraft had been produced by HAL with plans to build 20 more during 2013-14.