Fw 190 A-9
The Fw 190 A-9 was the last A-model produced, and was first built in September 1944. The A-9 was fitted with the new BMW 801S, called the 801 TS or 801 TH when shipped as a “power-egg”, or Kraftei, engine (an aircraft engine installation format embraced by the Luftwaffe for a number of engine types on operational aircraft, in part for easy field replacement) rated at 2,000 PS (1,973 hp, 1,471 kW); the more powerful 2,400 PS (2,367 hp, 1,765 kW) BMW 801F-1 was not available. The armour on the front annular cowling, which also incorporated the oil tank, was upgraded from the 6 mm on earlier models to 10 mm. The 12 blade cooling fan was initially changed to a 14 blade fan but it consumed more power to operate and did not really improve cooling thus BMW reverted back to the 12 blade fan. The cowling of the A-9 was also slightly longer than that of the previous Anton's due to the use of a larger, more efficient annular radiator for the oil system. The bubble canopy design with the larger head armour was fitted as standard. Three types of propeller were authorised for use on the A-9: the VDM 9-112176A wooden propeller, 11' 6" in diameter, was the preferred option however many A-9s were fitted with the standard VDM 9-12067A metal propeller and some had a VDM 9-12153A metal propeller with external, bolt on balance weights.[21] The A-9 was also designed originally as an assault aircraft, so the wing leading edges were to have been armoured; however this did not make it past the design stage in order to save weight. The A-9 was very similar to the A-8 in regards to the armament and Rüstsätze kits. A total of 910 A-9s were built between April 1944 and May 1945, mostly in Focke Wulf's Cottbus factory.[22][14]
I know that there where only 17 develop with only 11 in used. But this would be a nice addition.
Fw 190 D-11
17 Fw 190 D-11s were known to have been manufactured. This version was fitted with the uprated Jumo 213E series engine which was also used in the Ta-152 H series. Changes over the D-9 were the enlarged supercharger air-intake on the starboard side cowling and the use of a wooden, broad-bladed VS 9 or 10 propeller unit utilizing three 9-27012 C-1 blades with a diameter of 3.6 meters. The 13 mm fuselage guns were removed, and the cowling redesigned and by omitting the gun troughs was changed to a flat profile. Two 30 mm MK 108 cannons were installed in the outer wings to complement the 20 mm MG 151s in the inboard positions. Of the 17 Dora-11s delivered, three can be accounted for. One, the best-known, was Rote 4 (red 4) of JV 44's Platzschutz unit. Another, white chevron, was found at München-Riem, and may have served with JV 44 after serving at the Verbandsführerschule General der Jagdflieger (Training School for Unit Leaders) at Bad Wörishofen; it is not known if it was actually used operationally. A third, "white <61," was also found after the war at the Verbandsfuehrerschule General der Jagdflieger.[37]
While the D-11 was under manufacture, work started on the Fw 190 D-12 and D-13 models. The D-12 and D-13s were based on the D-11 design, however the D-12 and D-13 were fitted with Motorkanone nose cannons firing through the propeller hub (the D-12 would be fitted with a MK 108 30 mm cannon and the D-13 would be fitted with a MG 151/20 20 mm cannon). There were three test aircraft built for the D-12 line, V63, V64 and V65 but no production aircraft were built.