Hexacopters and octocopters, with six and eight propellers, can provide redundancy, but quadrocopters are much more popular because they have the minimum number of fixed motor propeller pairs: four.
Hexacopters dan octocopters, dengan baling-baling enam sampai delapan, dapat menyediakan redundansi, Tapi quadrocopters jauh lebih populer karena mereka memiliki jumlah baling-baling motor paling minim: empat.