We developed a prototype remote-controlled hammer-knife mower capable of mowing weeds over 1 m high on steep slopes. The work efficiency of the prototype is twice that of a commercially available remote-controlled mower and 2.6 times that of a walking-type mower. In flat fields with clusters of tall goldenrods, the prototype was twice as efficient as a brush cutter.
AOKI et al. (2026) studied this question.