Complex sentence: No 13 ITW was formed in Torquay in June 1941 and trained pilots, observers and navigators principally from the Commonwealth and Allied Air Forces, the intakes were smaller and the courses longer, so only about 3,000 passed through the Wing.
Split into simpler sentences: No 13 ITW was formed in Torquay in June 1941 and trained pilots, observers and navigators principally from the Commonwealth and Allied Air Forces. The intakes were smaller and the courses longer, so only about 3,000 passed through the Wing.