BG LHB AC First Class --- These constitute the highest class of travel in Indian Railways. Developed by latest German LHB (Linke Holfmann Busch) technology (later taken over by Alstom in 1998). They are considered to be "anti-telescopic", which means they do not get turned over each other, if the train derails or gets involved in a collision. The improved suspension system of LHB coaches ensures more riding comfort for the passengers compared to conventional ICF rakes. The air conditioning system of the LHB coaches is of higher capacity compared to the ICF rakes and is controlled by a microprocessor which is said to give passengers better comfort than the ICF coaches during summer and winter season. These coaches have a distinction of not having any fan which further makes the coaches lighter. These vestibuled, air-conditioned, high profile first class coaches with extra-cushioned seats/berths, made for express train services, offering air-conditioned accommodation in four berths (2 up & 2 down) & two berths (honeymoon cabins) lockable compartments better known as coupe or cabins for overnight journeys. These coaches are non self-generating i.e. they need EOG to get power. Type - LWFAC.