Complex sentence: The new design featured longer span wings and a revised fuselage able to carry dorsal and ventral power-operated turrets each fitted with four 20 mm Hispano cannon; despite the obvious gains in performance and capability, the Air Ministry was not interested.
Split into simpler sentences: The new design featured longer span wings and a revised fuselage able to carry dorsal and ventral power-operated turrets each fitted with four 20 mm Hispano cannon. However, despite the obvious gains in performance and capability, the Air Ministry was not interested.