How does a dual-line stunt kite differ from a quad-line stunt kite?

In the context of aeronautics, stunt kites are high-performance designs capable of complex aerial maneuvers like sharp turns, midair stops, and flying backward. The primary difference between dual-line and quad-line stunt kites lies in their control systems:1

• Dual-line stunt kites: These kites feature two flying lines attached to the bridle. They are designed for precision-controlled acrobatics and high-speed maneuvers.1
• Quad-line stunt kites: These kites utilize four flying lines. This configuration provides the pilot with significantly more precise control over the kite's movement and allows for instant braking action.1

Both types of stunt kites are constructed using advanced synthetic materials, such as carbon or fiberglass for spars and ripstop nylon or Mylar for sails, to ensure durability and performance.1