Hi Funked,
>Thanks RAM, 4000 kg makes sense. It's quite close to weights I have for A-3 and A-4.
Could you post some absolute weights here? This kind of data seems to be hard to find for most Focke-Wulf versions.
>The 1100 lb difference is not real, it's only in AH. I don't think standard A-8 was more than 700-800 lb heavier than an A-5.
I think the difference mainly was due to equipment and the weight of the additional fuel.
According to Geust's "Under the Red Star" the Russians captured a Fw 190A-8 (W.-Nr. 580967) configured as interceptor (no outer wing cannon, no rear fuselage tank, no bomb racks) which weighed in at 3986 kg.
By comparison, the standard Fw 190A-8 is listed by Focke-Wulf at 4300 kg without ETC501 bomb rack. 150 kg of the difference is from the wing guns, about 90 kg from the fuel. The remaining 74 kg difference probably can be (at least partly) attributed to the the tank and the fuel lines.
The detailed weight breakdown of the armour shows that the standard Fw 190A-8 had 137.8 kg of armour, while the A-8/R8 had 248.8 kg. Of the 111 kg increase, 27.5 kg could be attributed to a greater thickness of oil tank and cooler armour, 46.5 kg to the canopy protection, 28 kg to additional and strenghtened plates for pilot protection and 9 kg to the armour for the MK108 ammunition.
Regards,
Henning (HoHun)