Apologies for uploading another not-quite-finished model. Right now am bogged down in the engine & propellor details... ... Designed in 1924, this Italian plane was the best in the world. For two decades it was used not only for military but as a civilian airliner. ... ... Several radio-control modellers have built versions of this plane. ... ... Twin engines mounted back-to-back with one "pusher" prop, contra-rotating; the engine nacelle angled upward steeply. An unusual but very successful design.