Complex sentence: After World War II JATO became particularly common owing to the low slow-speed thrust of then-current jet engines or for assisting heavy aircraft; the prop-engined Avro Shackelton used Armstrong Siddeley Viper turbojets for takeoff.
Split into simpler sentences: After World War II JATO became particularly common owing to the low slow-speed thrust of then-current jet engines. The prop-engined Avro Shackelton used Armstrong Siddeley Viper turbojets for takeoff.