Complex sentence: On 10 April 2008 one further prototype in the final configuration (new landing gear and air brake, more composite parts) was rolled out: first flight of this "Industrial Baseline Configuration" was expected in June.
Split into simpler sentences: On 10 April 2008, one further prototype in the final configuration (new landing gear and air brake, more composite parts) was rolled out. The first flight of this "Industrial Baseline Configuration" was expected in June.