Sure, F-35C is heavier empty, by 5600kg
...it also has a max t/o weight 9600 more than Rafale M, can carry 4200kg more internal fuel, its single engine has ~25% more dry and wet thrust than the -M's two combined.
Contextually -35C is a replacement for the F/A-18 E/F, it is that aircraft's specs that should be used for comparison. Empty, -35C is 1300kg heavier, carries 2000kg more internal fuel, has a mtow 1900kg more, and a (non-ferry) range 125nm greater. Thrust is slightly up on the dual 414s (dry) and a touch down 'wet'. -35C's 7.5g limit is comparable to the 7.6g of -18 E/F.
I suspect that the engine and structure were compromised by the need for the -B, and are to blame for the empty weight difference. Furthermore the provision of an internal weapons bay will increase bulk and weight. Overall dimensions are a red herring. Although similar the '35 is bulkier within those parameters, Rafale is more slender & delicate looking.
Last edited by Willard Whyte; 18th May 2012 at 11:02.