The new "Metal seat Evo" inside the harness is used to hold prop cage, motor, handle etc. and has plenty of space for additional weights and flight batteries. "The"Evo harness" and"Evo metal seat" can also be flown without a pilot dummy. In this way, pilot dummies without functional arms can also be used. The zipper on the side facilitates the installation of the prop cage and handle and enables the flight battery to be changed quickly and easily. The complete "Evo harness system" (harness and metal seat) still fits our trikes "Airbull" and "Airbull light". Our harness Evo can of course be used as a purebred sailor, as well as a backpack motor.