LHB sleeper is an expirement done by IR with original LHB coaches which are Air conditioned and have 160 Kmph as max allowed speed. IR made sleeper version of the same coaches and those sleeper too have 160 Kmph mps.
The conventional icf coaches has mps of 110 Kmph only. Thats one difference and other main diff is that LHB sleeper run on EOG while icf dont.
IR did experiment of hybridizing the icf and LHB model too and made Hyrbrid LHB coaches which have same running mechanism like icf but its...
more... model and structure is of LHB. Hyrbid LHB have mps of 120 Kmph.