The Role of Propeller Mass in Rotational Acceleration
Carbon Fiber Superiority - Lightweight Props for Fast Thrust and Braking
A propeller that is stronger can be lighter, enabling the drone to quickly leave the vicinity of the ground, where an interference is most likely. Additionally, less energy is needed to sustain the drone during flight. The motors used to accelerate the 29"x9.5 propellers in the shrouded fans on V7.2 sustain 0.95 Nm of torque, defined above, when operating at approximately 80% power.
While no braking is present in the current design, braking as a strategy offers some advantages. Mainly, it hastens the package delivery segment of the flight by slowing the propellers faster and allowing no delay in approach after landing. It also lessens the amount of dust that will be generated in a dirt or sand landing scenario, although cement, pavement, and grass are the ideal surfaces which don't generate significant airborne particulates.