 Moreover, Långhjelm managed to increase foothold on West European and domestic market.He had a strong role in 1956 introduced act, which strengthened the financial position of Finnish shipbuilders in international market by tax reliefs and improved credit terms; the law became known as "Lex Långhjelm".Långhjelm became board member in the middle of the 1950s and in the beginning of 1962 he followed Wahlforss as general manager of Wärtsilä.