In July 2006 it was acquired by the Czech investment firm , FF Invest .
In 1995 , the company was privatised as Walter a.s. , and in 2005 the aviation engine division became Walter Aircraft Engines .
In July 2006 company was acquired by the Czech investment firm , FF Invest .
In 1995 , the company was privatised as Walter a.s. , and in 2005 the aviation engine division became Walter Aircraft Engines .