Complex sentence: The interest in the G.55 program was still high after the Armistice: in October 1943, Kurt Tank, who previously personally tested a G.55 in Rechlin, having nothing but praise for the aircraft, was in Turin to discuss G.55 production.
Split into simpler sentences: The interest in the G.55 program was still high after the Armistice. In October 1943, Kurt Tank, who previously personally tested a G.55 in Rechlin, having nothing but praise for the aircraft, was in Turin to discuss G.55 production.