Not entirely right. Let’s say, there are some connection between motor and propeller changes in shape, size and material, but motor do not have direct influence on choice of propeller. Performance of propellers with different shapes might perform similarly. Propeller size partially influences its performance, and material change is mainly decided by working condition/environment. There are more to be taken into consideration actually apart from the above mentioned. Elements like cost, reliability and weight as well as other special requirements from customers will also play a role in propeller option on shape, size and material.