A-5/U1 Fitted with BMW 801C-2 engine. One only. A-5/U2 Armament reduced to 2 x MG 151. 3 x 300 litre drop tanks. Flame-dampers fitted around fuselage. Double searchlight in port wing. Four built. Developed into Fw 190G-3/N long-range night fighter-bomber. A-5/U3 Two ETC 50 bomb racks under each wing. Extra armour fitted. Originally intended to enter full production as A-6 fighter-bomber but redesignated F-2 instead. A-5/U3 tp had tropical filters. A-5/U4 Reconnaissance version similar to A3/U4. Initially called A-7, then changed to Fw 190E-1 but no serial production followed. A-5/U4 tp – A-5/U4 fitted with tropical filters. A-5/U8 Fighter-bomber version with Messerschmitt designed wing racks and Robot camera in port wing. Developed into Fw 190G-2. A-5/U9 Larger wings (34ft 5½in span) and armament changed to 4 x MG 151 in wings and 2 x MG 131 on nose. A-5/U10 MG FF cannon in outer wings replaced with MG 151/20. A-5/U11 1 x podded MK 103 cannon under each wing outboard of landing gear. Developed into R3 conversion kit for A-6, A-8, F3 and F-8. A-5/U12 2 x podded MG 151/20 cannon under each wing. Developed into A-6/R1. A-5/U13 Fighter-bomber version similar to A5/U8 but with fittings for 1 x SC250 under each wing. Directional control fitted, balloon cable cutter and Robot camera. Developed as the Fw 190G-3. A-5/U14 Torpedo carrier. Fitted with modified ETC rack to carry 1 x LTF 5b torpedo. Modified flaps, enlarged vertical tail surfaces, extended tailwheel leg. Armament reduced to 2 x MG 151/20. A-5/U15 Torpedo carrier similar to A-5/U14 but with autopilot, target finder and fittings for one drop tank under each wing. Increased armour. A-5/U16 1 x MK 108 cannon in each outer wing position. Developed into A-6/R2. A-5/U17 Ground attack version. Extra armour. Outer wing MG FFS swapped for MG 151/20s. ETC 501 rack under fuselage and each wing. Developed into Fw 190F-3/R1. A-5/U18 MW 50 water methanol injection for BMW 801. A-5/R1 Similar to A-4/R1 but based on A-5. A-5/R6 Similar to A-4/R6 but based on A-5. A-5 trop Tropical filters fitted.