 Bokanisa ngonga oyo esengeli mpo na kotambola 1 km.
 Na mwayene, esɛngaka miniti soki 10 to 15 mpo na kotambola kilomɛtrɛ moko na mbangu oyo ebongi. Kasi, yango ekoki kokesana engebene makambo lokola mbula, nivo ya nzoto kolɔngɔnɔ, mpe mbangu ya kotambola ya moto, bakisa mpe terrain, conditions météorologiques, mpe ba variables mosusu.