The ADA is designing the AMCA with an internal fuel capacity of 4 tonnes to exclude the necessity of
carrying outboard fuel tanks which significantly compromise the aircraft's stealth properties. The
ADA estimates that the AMCA will have a combat radius of 1,000 km on these 4 tonnes of internal fuel.
It must be noted that the F-35 A carries 8.3 tonnes of fuel and the F-35 C close to 9 tonnes that enable
both these aircraft to achieve a combat radius of no more than 1,100 km for an aircraft with a
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maximum take-off weight (MTOW) of 31 tonnes. It would seem therefore that the AMCA would
have to be half the weight of the F-35 in order to achieve a 1,000-km unrefuelled combat radius or
have revolutionary engines that cut fuel consumption in half.
Given that the AMCA is a twin-engine aircraft with greater fuel consumption, such range statistics as
given by the ADA simply do not hold up to preliminary scrutiny.