and started operating from Bom Sucesso in 1923. In 1919 aircraft of the Portuguese Naval Aviation operating from São Jacinto were used against the pro-monarch movement Monarchy of the North, during the political instability in Portugal that resulted from the assassination of President Sidónio Pais. The first documented use of Portuguese aircraft from ships was in 1922, during the First aerial crossing of the South Atlantic, when after an accident in Saint Peter and Saint Paul Archipelago the aircraft used by the Portuguese aviators was embarked into the Brazilian civilian ship Bagé and transported back to Lisbon. In April 1931, following an attempted military takeover in Funchal, Madeira, the Portuguese government declares martial law in Madeira and in the Azores. Four CAMS 37A of the Naval Aviation were then sent on April 11 to Horta, Azores, by ship to perform reconnaissance, ground attack, and psychological warfare missions against the local revolting forces. These aircraft flew 100 hours and were hit by small arms fire and fireworks converted into rudimentary anti-aircraft rockets. Nevertheless, no aircraft were lost and all returned to Lisbon by the end of the hostilities. At this time, the Magalhães Corrêa naval modernization program () included the purchase of a seaplane tender that was order from Italy in 1931. However, as consequence of the 1929 economic crisis, the value of the Lira collapsed and the increase of the acquisition costs led to the contract being canceled. Nevertheless, as part of the modernization program two 1st class avisos of the NRP Afonso de Albuquerque were built with the capacity to carry a floatplane, Hawker Osprey III. These aircraft were mostly used in reconnaissance and training and by the 1940s it was decided that they added didn't add any further capabilities to the ship and their facilities were replaced on the ships by anti-aircraft artillery. Reorganization of the Naval Aeronautics Service On September 30, 1936, the Naval Aeronautics Service suffered a deep reorganization. Its operational component became the Navy's Air Forces (FAA, Forças Aéreas da Armada), which was foreseen to include permanent and reserve naval aeronautical forces. It was organized in flights, each including from six to 12 single-engine or from three to five multi-engine aircraft of the same type. The flights could be subdivided in sections and grouped in groups of flights. Besides the Navy's Air Forces, the Naval Aeronautics Service also included the Directory of the Naval Aeronautics