Complex sentence: In 1963 Mooney introduced the M20D Master, essentially an M20C with fixed gear and a fixed-pitch propeller, intended primarily for flight training and for owners seeking lower insurance rates.
Split into simpler sentences: In 1963 Mooney introduced the M20D Master, essentially an M20C with fixed gear and a fixed-pitch propeller. The aircraft was intended primarily for flight training and for owners seeking lower insurance rates.