In 1911 Società Nazionale delle Officine di Savigliano supplied Turin Poly aero lab with reaction balance and equipment for testing engines, and in 1912-13 7 Maybach engines were produced under licence for airships. Works expanded 1914, with airfield added, and in 1915-18 SNOS produced 28 SP 2, 58 SP 3, about 50 Ca 33 and small batch of SIA 7b1.

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