204.Squadriglia, Regruppamento Aerisiluranti - Summer 1943. Improved extended range torpedo bomber introduced in late 1942. It was not available in significant numbers until mid-1943. Known also as SM.79bis, SM.79GA, or SM.579. Powered by AR.128 engines of approximately 1000 hp each, giving increased performance (speed increased to 475 km/h, and climb to 5000 m in 16 minutes 7 sec). Ventral nacelle deleted. 1000 L fuel tank mounted in the bomb bay. The forward machine gun was retained, with its flash protection, probably as an anti-ship weapon.