Cord models are also often referred to as low thrust models. They are lightweight and are used for racing indoors or outdoors. Pilots control the model with two sticks that control the angle of attack and flight altitude.
Line model racing is a competitive discipline for amateur pilots. The competition usually involves several models that start at the same time and compete for speed, best lap time and other parameters. Some competitions also feature distance and height races.
Cord model racing is popular among fans of aircraft modeling and is considered to be quite affordable and exciting sport.