Savoia-Marchetti SM.81 Pipistrello
The Savoia-Marchetti SM.81 Pipistrello (Italian: bat) was the first three-engine bomber–transport aircraft serving in the Italian Regia Aeronautica. When it appeared in 1935, it was fast, well armed and had a long range.
Source: Wikipedia — Savoia-Marchetti SM.81 Pipistrello (CC BY-SA 4.0)