The cage is intended for a number of safety factors, the most important being to ensure that the propellers dont slice through the lines of the paraglider (kind of important) and to a lesser extent to protect the pilots arms & legs and ensure the prop wont hit the ground if there is a rough...
Ok, on a somewhat related topic.
Im looking at propeller design for a paramotor (paraglider with motor) the speed is going to be low, the engine power is going to be only a few horsepower and it needs to generate at least 30KG+ of thrust (preferably 50KG)
Now as i am trying to get the weight to...