## A record-breaking drone The Peregreen V4, a quadcopter entirely made with 3D printing, has set a new world speed record for drones, reaching a top speed of 657 km/h (408 mph). This achievement allows the father-son team to reclaim the title, previously held by another aircraft. ## The competition for speed The competition for the world's fastest drone is constantly evolving, with teams of engineers and enthusiasts constantly seeking to push the limits of technology and aerodynamics. The use of 3D printing allows for greater flexibility in the design and manufacture of components, opening up new possibilities for optimizing drone performance.