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Message: <blockquote data-quote="Skybolt" data-source="post: 64734" data-attributes="member: 145"><p>Additional info (just found): the first (actually the second, the first instance was briefly in 1937) use on the SM-94 designation is from August 1942, when a "model" is cited as in construction. Nevrtheless, there is no hint that this early SM-94 is the same of the drawing form July 1943. It was customary for Savoia-Marchetti to assign internal provisional designations to projects. Sometimes they were officially accepted, sometimes they were changed to become official. For example, the SM-91 that was actually built was SM-88 until December 1942.</p></blockquote><p></p>