 The four inboard water cooled engines, which were mounted as tandem push-pull pairs and intended to be capable of generating up to 1,000 hp, enabled the aircraft to attain a maximum design speed of 160 mph.It was named "Lieutenant de vaisseau Paris", after a highly accomplished French naval officer and record-breaking pilot of the era.The Laté 520 featured a large double-decked hull that provided enough space to accommodate 80 passengers.