Delta 4 (Glider)

A Quantum Leap The Delta 4 offers the largest performance gain we have yet seen with the Delta model range whilst retaining the comfort and ease of use that has made this series the best-selling sport class wing of all time. 2-Liner technology in the wing tips significantly reduces drag while improving spanwise lift distribution. A new lower-drag profile developed from the Mantra series with smaller openings and higher efficiency. Performance Testing The D4 has a massive +12cm/s sink rate advantage over the D3. In calm air, this results in a full glider-cone height gain every minute. In turbulence, the gain is larger as the D4 cuts through turbulence using gusts for altitude gain, much like a competition wing. The max speed of the D4 is 3kph faster, walking away from the D3 in accelerated flight. True Performance Intuitive and efficient AoA control, an improved airfoil design, and optimised internal structure make the D4 an XC glide machine in turbulence. Its structure is the