Complex sentence: The C.40 was the last autogiro designed by the Cierva company, following the death of Cierva in 1936 the C.40 was designed by J.A.J Bennett and based on the earlier Cierva C.30.
Split into simpler sentences: The C.40 was the last autogiro designed by the Cierva company. Following the death of Cierva in 1936 the C.40 was designed by J.A.J. Bennett and based on the earlier Cierva C.30.