John,
I'm sure you'll remember this :
YouTube - Su-27 Flanker 
Really must get around to downloading a full length / high quality copy onto Youtube sometime but this will have to do for now.
nomorecatering, as John Farley says, there are so many variants / sub-variants that it's difficult to even estimate precise landing distances. Some of the variants seen at airshows, such as the above, were actually slightly stripped down / basic versions, as was 598 and her sisters 595 and 597.
I recall that the (Su-27) / Su-35? variants which displayed at Farnborough carrying a full warload required rather more tarmac to come to a standstill than the one in this clip which is hardly surprising.
However, appearances / video 'evidence' of stopping distances can be deceptive. At certain places we filmed them, like Zhukovsky, the runway was so long, and dosh for replacement parts (like new brakes) was so short, that they hardly used the brakes at all and just relied on the length of tarmac to slow them down.
CS