Model GTC-80 rail flaw detection car is mainly used to detect various flaws in the line rails, and can be equipped with rail state patrolling and rail profile systems, etc. It is also designed with such functions as dynamic acquisition, image browsing and analysis management of surface images of rail, fastener, track slab surface, sleeper and ballast bed. The vehicle is composed of two cars, namely a motor car and an detection car, and each car is designed with 2 two-axle bogies. The vehicle is capable of self-running and coupling with existing rolling stock coupling in China. The vehicle can be equipped with rail profile inspection system as optional.