Concerning Su 80, development was never finished, there are some non resolved issues with structure behind. During flight
testing, tail structure is "live" and cables for controls are non intentionally "live" too -> non commanded moves of control surfaces.
Last time I talked to KnAAPO they where "crazy" about SSJ
delay. Therefore Su 80 is waiting better times, to be finished.
BTW my suggestion was to switch on another 2 possible (safe) ways
of controls, but Suhoi designers know "the job" better than me
Living in hope too to see second generation of Su80 on MAKS 2013.
