(Combined gas-electric and gas)

(Combined diesel - electric or diesel)

(Combined diesel-electric and diesel + pod propulsion)

(Combined gas and steam + electric drive)

(Combined diesel-electric or gas)

(Combined diesel and gas + electric generators)

(Combined diesel and gas water jet and refined propeller)

(Combined diesel or diesel)

(Combined diesel or gas)

(Combined diesel and gas)

(Combined diesel-electric and diesel)

(Combined diesel-electric and gas)

(Combined diesel and diesel)

(Combined steam and gas)

(Combined gas or gas)

(Combined gas and gas)

(Combined gas and steam)

(Combined nuclear and steam)

(Integrated electric propulsion or full electric propulsion or integrated full electric propulsion)