Bertie, yes sad all available science arnt known nor popular among people, circular wing and flying wings that are chord thick proved to be alot better then just rektangular slender wings, the stall speed is very very low, the weight strength ratio is awsome .. etc..

the model of the propeller I made was alot quiter then normal propellers.. but it was way out of balance and so i didnt get thrust enough.. I just made it with foam)depron)