likely to cost rs 3 crore to make as against rs 28 crore for an ac3 lhb coach economy ac tickets will therefore cost more than ordinary sleeper class but less than the normal ac3 indian railways officials have saidthe new class is likely to be profitable as a cag report tabled last year showed that ac3 and ac chair car were the only profitable classes in 201617 ac3 has always been profitable and railways has increased the production of its coaches from 488 in 201415 to 885 in 201819the rcf hopes to roll out 100 economy ac coaches this financial year subject to the railway boards approval and 173 more in the 202122 financial year