Capricorn ONE .21 bi-compound backplate

From Capricorn RC for their ONE .21 engines is a bi-compound backplate. It is made of 2 materials, steel and aluminium, with the backplate featuring a new design to help with better internal fluid dynamics and increase coanda effect. In testing this has helped in improve torque and top speed for the engines and gaining around 10 seconds more run time.

Source: Capricorn [capricornrc.com]