>>8557192>Considering the fact that it was never complete to begin with (just like Su-47 they had never finished electronics for the cockpit) it is not surprising.If I had to guess it was probably somewhat like the Yak-141's cockpit, with a bunch of extra status lights, since it's a prototype rather than an actual pre-production fighter ready to be fielded.
For example the cockpits of the Sukhoi T-10, X-35 and the YF-16 were also wildly different than the final production versions.