by Mark Davies The Savoia-Marchetti S.M. 81 Pipistrello (nicknamed ”Bat ”) was an Italian bomber/transport aircraft of the Second World War developed from the Savoia-Marchetti S.M. 73 passenger airliner of the mid-1930s. Largely obsolescent with its three 700-horesepower Piaggio P.X RC.35 radial piston engines, it nevertheless was a large […]