Even when the world has already settled on plain previous propellers as the way in which to make quadcopter drones fly, this doesn’t imply that you just can’t give different designs a shake to see what sort of flying efficiency they end in. For instance impeller designs that depart radically from normal propellers – themselves a sub-category of axial impellers – and go radically radial as a substitute as in this design by [quadmovr] with accompanying demonstration video.
That is itself a remix of a design by [Baba] to make it match the goal 1750KV T-mount motor. As for whether or not this can be a design that you just wish to slap by yourself quadcopter, the plain drawback is that it’s a lot heavier than common propellers.
Weighing [quadmovr]’s drone with out battery pack and with these 3D-printed PETG impellers exhibits them to weigh 189 grams. This compares to 141 grams with the usual three-bladed propellers, or a hefty 12.8 gram weight penalty per impeller. Naturally this interprets into much less flying time, so what are the benefits?
The noise profile of the impeller design is unquestionably extra nice, and very like novice quadcopters with the protecting ring across the propellers these impellers needs to be extra sturdy. Alternatively elevated mass provides to inertia, and there’s a lot extra floor space with the air so as to add drag, so regardless of the completely sick strikes that [quadmovr] pulls off with each impeller configurations within the video one has to confess that common three-blade propellers do have the sting right here.
