Airplane Warfare in WWI During World War One, the role of airplanes and how they were used changed greatly. At first planes were only used for sport, but people started realize that not only could airplanes be useful but they could even influence an outcome of the war greatly. Soon the war was filled with blimps, planes, and tethered balloons. By the end of the war, planes became a symbol of fear, but they were not always treated with such respect. In the time leading up to the war, the general feeling about planes was, they were a sneaky, unfair tactic that should not be used in warfare. During The 1