Complex sentence: Following the change in government, the Sea Furies were retained by the "Fuerza Aerea Revolutionaria" ("Revolutionary Air Force"; FAR); the Sea Fury proved difficult to keep operational, partially because the new military lacked personnel experienced with the type.
Split into simpler sentences: Following the change in government, the Sea Furies were retained by the "Fuerza Aerea Revolutionaria" ("Revolutionary Air Force"; FAR). However they proved difficult to keep operational, partially because the new military lacked personnel experienced with the type.