Complex sentence: His fascination with with manned flight started at an early age when his father showed him pictures of Bleriot's monoplane, and he first flew, aged 7 in a man-lifting kite.
Split into simpler sentences: His fascination with manned flight started at an early age when his father showed him pictures of Bleriot's monoplane. He first flew aged 7 in a man-lifting kite.