Also a kind of trailer but without the loading area. One end of the loading compartment is mounted on the axle area of the running gear. This does not possess any drive. Air for brake and electrical connection is provided from the prime mover. This type of running gear is used in the LPG Tankers (articulated vehicle). The rear mounting beds of LPG tanker will be mounted on the running gear. The number of axles (single or double axles) in the running gear will be according to the load carrying capacity of LPG tank. The other trailers will have main chassis frame from the prime mover up to the rear end.