After the production of the first SULZER 12 ZV 40/48 engine in 1976, production started on an upward trajectory, and by the end of 1977, two more SULZER auxiliary engines with the designation 12 ZV 40/48 were produced. Production under the SULZER license has continued for many years and Adriadiesel is still one of the leading suppliers of spare parts for engine repairs.

Back in 1976, the first auxiliary engine under the SULZER license with the designation 12 ZV 40/48 was produced in Croatia, more precisely in the city on four rivers Karlovac, and in Karlovac there is still a company named Adriadiesel which is in charge of maintenance and supply of spare parts of that engine as well as all manufactured after it.

Through years of work and experience in solving construction and production problems, more and more science has been incorporated into products and processes. Increasingly, self-developed electronics, a development laboratory, computer programs, and computer-aided informatics and organizations were used. At the end of the 60's, the" Research and Development" unit was established, and at the end of the 70's, the "Jugoturbine Institute". The development of basic products remained in the working organizations for the production of steam turbines, engines and pumps, but more and more laboratories, computer capacities, development and investment engineers were concentrated in the Institute, which reached 330 employee's in the mid-1980s.

The expansion of production, intensive development and the opening of new plants were in the observed period the basic features of the work and operations of Yugoturbina, which led to a larger increase in the number of employees.

In 1977, Yugoturbina employed 5,000 workers, and in 1986 it was 8,593, in nine years the number of employees increased by 2984. If the natural annual outflow is taken into account, it means that about 430 new workers were employed annually, or a total of 3870.

At the same time, the increase in the number of employees significantly changed the qualification structure, in which the educational level of workers with higher education is growing faster.

Such intensive development was followed and at the same time enabled adequate business results and a relatively good position on the domestic and world markets.