Complex sentence: The boat was placed in trust in April 2011 and is a social enterprise for the upkeep of U- 8047 Replica Submarine to facilitate the free historical education of children.
Split into simpler sentences: The boat was placed in trust in April 2011. The U- 8047 Trust is a social enterprise for the upkeep of U- 8047 Replica Submarine to facilitate the free historical education of children.